noun: the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb
Example: "`The boy threw the ball' uses the active voice"
noun: chemical agent capable of activity
adjective: taking part in an activity
Example: "An active member of the club"
adjective: being in physical motion
Example: "Active fish in the aquarium"
adjective: engaged in or ready for military or naval operations
Example: "On active duty"
adjective: characterized by energetic activity
Example: "An active toddler"
adjective: engaged in full-time work
Example: "Active duty"
adjective: full of activity or engaged in continuous activity
Example: "An active seaport"
adjective: tending to become more severe or wider in scope
Example: "Active tuberculosis"
adjective: disposed to take action or effectuate change
Example: "A director who takes an active interest in corporate operations"
adjective: producing activity or change
adjective: (of e.g. volcanos) erupting or liable to erupt
Example: "Active volcanos"
adjective: expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')
adjective: expressing that the subject of the sentence has the semantic function of actor
Example: "Hemingway favors active constructions"
adjective: exerting influence or producing an effect
Example: "An active ingredient"
adjective: of the sun; characterized by a high level activity in sunspots and flares and radio emissions
adjective: characterized by energetic bodily activity
