IPA: /ˈæktɪv/
KK: /ˈæktɪv/
Being engaged in action or movement; not resting or inactive. This can refer to people, animals, or things that are currently doing something or are in use.
She leads an active lifestyle, going for runs every morning.
Comparative: more active
Superlative: most active
A person who is involved or participates in a group or organization, often taking part in its activities.
The union actives gathered to discuss the upcoming vote.
Active → It is formed from "act-" (from Latin "agere", meaning to do or to act) and "-ive" (meaning having the nature of). The word "active" describes having the nature of doing or being engaged in action.
Think of 'acting' or 'doing' ('act-') to remember that 'active' means being engaged in action.