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What is a User ID? Understanding User IDs in Digital Analytics | Amplitude
Amplitude

Glossary

Learn about analytics, product, and technical terms and get their definitions in our Glossary.

Table of Contents
  • All Terms
    • Abandonment rate
      • A/B Testing
        • Activation rate
          • Active user growth
            • Ad hoc analysis
              • Adoption rate
                • Analytics
                  • Anomaly detection
                    • Application programming interfaces
                      • App metrics
                        • Attribution modeling
                          • Audience segmentation
                            • Average order value (AOV)
                              • Average revenue per user
                                • Behavioral analytics
                                  • Behavioral cohorting
                                    • Benchmarking
                                      • Bounce rate
                                        • Button click
                                          • Cart abandonment
                                            • Causality analysis
                                              • Channel attribution
                                                • Churn
                                                  • Churn rate
                                                    • Clickstream data
                                                      • Click-through rate
                                                        • Cluster analysis
                                                          • Compound annual growth rate
                                                            • Conversions
                                                              • Conversion attribution
                                                                • Conversion funnel
                                                                  • Conversion rate
                                                                    • Correlation coefficient
                                                                      • Cost per acquisition
                                                                        • Customer acquisition cost
                                                                          • Customer experience (CX)
                                                                            • Customer journey mapping
                                                                              • Customer lifetime value (CLV)
                                                                                • Customer retention rate
                                                                                  • Daily active users (DAU)
                                                                                    • Data cleansing
                                                                                      • Data enrichment
                                                                                        • Data integration
                                                                                          • Data mining
                                                                                            • Data normalization
                                                                                              • Data pipeline
                                                                                                • Data sampling
                                                                                                  • Data scrubbing
                                                                                                    • Data transformation
                                                                                                      • Data visualization
                                                                                                        • Deep linking
                                                                                                          • Descriptive analytics
                                                                                                            • Diagnostic analytics
                                                                                                              • Drill-down analysis
                                                                                                                • Drop-off rate
                                                                                                                  • Dynamic segmentation
                                                                                                                    • Engagement metrics
                                                                                                                      • Event segmentation
                                                                                                                        • Event taxonomy
                                                                                                                          • Experiment design
                                                                                                                            • Exploratory data analysis
                                                                                                                              • Experimentation
                                                                                                                                • Feature adoption
                                                                                                                                  • Feature usage
                                                                                                                                    • File download
                                                                                                                                      • Forecasting
                                                                                                                                        • Form submitted
                                                                                                                                          • Funnel analysis
                                                                                                                                            • Go to market strategy
                                                                                                                                              • Heuristic analysis
                                                                                                                                                • Hypothesis testing
                                                                                                                                                  • In-app messaging
                                                                                                                                                    • Key driver analysis
                                                                                                                                                      • K-means clustering
                                                                                                                                                        • Lagging indicators
                                                                                                                                                          • Leading indicators
                                                                                                                                                            • Lifecycle analysis
                                                                                                                                                              • Lifetime value
                                                                                                                                                                • Link clicks
                                                                                                                                                                  • Log-level data
                                                                                                                                                                    • Market basket analysis
                                                                                                                                                                      • Marketing qualified lead (MQL)
                                                                                                                                                                        • Mean absolute error
                                                                                                                                                                          • Mobile analytics
                                                                                                                                                                            • Monte carlo simulation
                                                                                                                                                                              • Monthly active users (MAU)
                                                                                                                                                                                • Multichannel attribution
                                                                                                                                                                                  • Multivariate analysis
                                                                                                                                                                                    • Navigation click
                                                                                                                                                                                      • Net promoter score
                                                                                                                                                                                        • Net retention rate
                                                                                                                                                                                          • Onboarding
                                                                                                                                                                                            • Operating expenses
                                                                                                                                                                                              • Outlier detection
                                                                                                                                                                                                • Page view
                                                                                                                                                                                                  • Path analysis
                                                                                                                                                                                                    • Predictive analysis
                                                                                                                                                                                                      • Predictive analytics
                                                                                                                                                                                                        • Predictive modeling
                                                                                                                                                                                                          • Prescriptive analytics
                                                                                                                                                                                                            • Product analytics
                                                                                                                                                                                                              • Product features
                                                                                                                                                                                                                • Product led growth (PLG)
                                                                                                                                                                                                                  • Product management
                                                                                                                                                                                                                    • Product roadmap
                                                                                                                                                                                                                      • Product strategy
                                                                                                                                                                                                                        • Qualitative data
                                                                                                                                                                                                                          • Real-time analytics
                                                                                                                                                                                                                            • Regression analysis
                                                                                                                                                                                                                              • Return on ad spend (ROAS)
                                                                                                                                                                                                                                • Revenue attribution
                                                                                                                                                                                                                                  • Root cause analysis
                                                                                                                                                                                                                                    • Sales qualified lead (SQL)
                                                                                                                                                                                                                                      • Sentiment analysis
                                                                                                                                                                                                                                        • Session duration
                                                                                                                                                                                                                                          • Sessions
                                                                                                                                                                                                                                            • SQL querying
                                                                                                                                                                                                                                              • Statistical significance
                                                                                                                                                                                                                                                • Survival analysis
                                                                                                                                                                                                                                                  • SWOT analysis
                                                                                                                                                                                                                                                    • Tag management
                                                                                                                                                                                                                                                      • Time series analysis
                                                                                                                                                                                                                                                        • Time to value
                                                                                                                                                                                                                                                          • Traffic sources
                                                                                                                                                                                                                                                            • Trigger-based messaging
                                                                                                                                                                                                                                                              • Universally unique identifier (UUID)
                                                                                                                                                                                                                                                                • User behavior analytics
                                                                                                                                                                                                                                                                  • User engagement
                                                                                                                                                                                                                                                                    • User feedback loop
                                                                                                                                                                                                                                                                      • User flows
                                                                                                                                                                                                                                                                        • User ID
                                                                                                                                                                                                                                                                          • User onboarding
                                                                                                                                                                                                                                                                            • User persona
                                                                                                                                                                                                                                                                              • User properties
                                                                                                                                                                                                                                                                                • User segmentation
                                                                                                                                                                                                                                                                                  • User stories
                                                                                                                                                                                                                                                                                    • Variance analysis
                                                                                                                                                                                                                                                                                      • Website analytics
                                                                                                                                                                                                                                                                                        • Weekly active users (WAU)

                                                                                                                                                                                                                                                                                          Explore our Glossary of common terms in the analytics, product, and growth space. Learn their definitions and view examples.

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