active

adj. energetic, busy, constantly moving, lively; functioning; of or pertaining to the active voice, indicating that the action is performed by the subject of the verb (Grammar)

n. active voice, verb in the active voice (Grammar)

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Noun
1. chemical agent capable of activity
(synonym) active agent
(hypernym) chemical agent
2. 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"
(synonym) active voice
(hypernym) voice
3. a person devoted to the active life
(antonym) contemplative
(hypernym) person, individual, someone, somebody, mortal, human, soul

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Adjective
1. tending to become more severe or wider in scope; "active tuberculosis"
(antonym) inactive
(similar) progressive
(classification) pathology
2. engaged in or ready for military or naval operations; "on active duty"; "the platoon is combat-ready"; "review the fighting forces"
(synonym) combat-ready, fighting(a)
(similar) operational
(classification) military, armed forces, armed services, military machine, war machine
3. disposed to take action or effectuate change; "a director who takes an active interest in corporate operations"; "an active antagonism"; "he was active in drawing attention to their grievances"
(antonym) passive, inactive
(similar) activist, activistic
(attribute) activeness, activity
4. taking part in an activity; "an active member of the club"; "he was politically active"; "the participating organizations"
(synonym) participating
(similar) involved
5. characterized by energetic activity; "an active toddler"; "active as a gazelle"; "an active man is a man of action"
(antonym) inactive
(similar) about(p), astir(p)
(see-also) energetic
(attribute) activeness, activity
6. exerting influence or producing an effect; "an active ingredient"
(antonym) inactive
(similar) activated
7. full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account"
(antonym) inactive
(similar) brisk
(attribute) action, activity, activeness
8. in operation; "keep hope alive"; "the tradition was still alive"; "an active tradition"
(synonym) alive(p)
(similar) existent, existing
9. of the sun; characterized by a high level activity in sunspots and flares and radio emissions
(antonym) quiet
(classification) astronomy, uranology
10. expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
(antonym) passive
(classification) grammar
11. expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')
(synonym) dynamic
(antonym) stative
(classification) grammar
12. (of e.g. volcanos) erupting or liable to erupt; "active volcanos"
(antonym) dormant, inactive
(similar) alive(p), live(a)
(attribute) action, activity, activeness
(classification) vent, volcano
13. producing activity or change
(antonym) counteractive, antagonistic
(similar) surface-active
14. engaged in full-time work; "active duty"; "though past retirement age he is still active in his profession"
(antonym) inactive
(similar) activated
(classification) military, armed forces, armed services, military machine, war machine
15. being in physical motion; "active fish in the aquarium"
(similar) moving
16. characterized by energetic bodily activity; "tennis is an active sport"; "a very physical dance performance"
(synonym) physical
(similar) energetic

adj. active, potent, working; buoyant, bustling, quick, alert; busy, practitising; lively, functioning

v. set in motion, activate; brisk, rouse, push along; check

v. activate; push on