Active user
A user considered engaged during the selected period under GA4 reporting rules.
Reference
Analytics Glossary
Click
A visit from a Google Search result in Search Console.
CTR
Clicks divided by impressions.
Dimension
A descriptive attribute such as page, source or device.
Event
A recorded user interaction in GA4.
Impression
A Search Console count showing that a result was displayed under Google's reporting rules.
Key event
An event marked as especially important to the organisation.
Metric
A numerical measurement such as users, sessions or event count.
Property
A Google Analytics or Search Console container for website data.
Session
A group of user interactions occurring within a visit.
Source / medium
Information describing where traffic came from and how it arrived.
UTM parameter
A campaign label added to a URL for consistent traffic reporting.