"actives" in the noun sense

1. active agent, active

chemical agent capable of activity

2. active voice, active

the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb

"`The boy threw the ball' uses the active voice"

3. active

a person who is a participating member of an organization

"the club issues a list of members, both the actives and the retirees"

Source: WordNet® (An amazing lexical database of English)

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