Remarketing List is an audience list of users who previously interacted with a website or other tracked experience.
It matters because most visitors do not convert on the first visit. Retargeting terminology helps teams create thoughtful follow-up sequences, avoid wasted impressions, and respect audience exclusions and privacy expectations.
Example
A list can group eligible visitors who viewed a service page within a selected period. Its rules, exclusions and membership duration determine who belongs in the audience; naming it ‘high intent’ does not independently qualify those visitors.