active

(ăkˈtĭv)

1. Being in physical motion: active fish in the aquarium.
2. Functioning or capable of functioning.
3. a. Marked by energetic activity; busy: active stock and bond markets; spent an active day sightseeing.
   b. Involving or requiring physical exertion and energy: an active workout at the gym.
4. a. Being in a state of action; not quiescent: active hostilities along the border.
   b. Erupting or liable to erupt; not dormant: an active volcano.
5. a. Marked by or involving direct participation: took an active interest in politics; played an active role on the committee.
   b. Currently in use or effect: an active membership.
   c. Openly acknowledged or expressed: an active dislike of the new neighbors.
6. Producing an intended action or effect: active ingredients.
7. Grammar
   a. Indicating that the subject of the sentence is performing or causing the action expressed by the verb. Used of a verb form or voice.
   b. Expressing action rather than a state of being. Used of verbs such as run, speak, and move.
8. Producing profit, interest, or dividends: active accounts; active stocks.
9. Electronics
   a. Being a source of electrical energy, as a generator.
   b. Capable of converting or amplifying voltages or currents, as a diode or transistor.
10. Being on full military duty and receiving full pay.

1. Grammar
   a. The active voice.
   b. A construction or form in the active voice.
2. A participating member of an organization: union actives.

Related Forms:

• acˈtive·ly adverb

• acˈtive·ness noun