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Having the power or quality of acting; causing change; communicating action or motion; acting;—opposed to passive, that receives.
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Quick in physical movement; of an agile and vigorous body; nimble.
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In action; actually proceeding; working; in force
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Given to action; constantly engaged in action; energetic; diligent; busy
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Requiring or implying action or exertion
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Given to action rather than contemplation; practical; operative
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Brisk; lively.
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Implying or producing rapid action.
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(heading, grammar) About verbs.
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(computing, of source code) Eligible to be processed by a compiler or interpreter.
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(electronics) Not passive.
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(gay sexual slang) (of a homosexual man) enjoying a role in anal sex in which he penetrates, rather than being penetrated by his partner.