[ US /ˈæktɪv/ ]
[ UK /ˈæktɪv/ ]
  1. chemical agent capable of activity
  2. a person who is a participating member of an organization
    the club issues a list of members, both the actives and the retirees
  3. 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
  1. exerting influence or producing a change or effect
    an active ingredient
  2. (of e.g. volcanos) erupting or liable to erupt
    active volcanos
  3. characterized by energetic activity
    an active toddler
    an active man is a man of action
    active as a gazelle
  4. engaged in or ready for military or naval operations
    review the fighting forces
    the platoon is combat-ready
    on active duty
  5. in operation
    the tradition was still alive
    an active tradition
    keep hope alive
  6. (of e.g. volcanos) capable of erupting
  7. (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being
  8. tending to become more severe or wider in scope
    active tuberculosis
  9. expressing that the subject of the sentence has the semantic function of actor:
    Hemingway favors active constructions
  10. taking part in an activity
    the participating organizations
    he was politically active
    an active member of the club
  11. disposed to take action or effectuate change
    an active antagonism
    a director who takes an active interest in corporate operations
    he was active in drawing attention to their grievances
  12. (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions
  13. engaged in full-time work
    active duty
    though past retirement age he is still active in his profession
  14. full of activity or engaged in continuous activity
    an active account
    an active bond market
    an active seaport
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How To Use active In A Sentence

  • The process of inspiration is active and requires energy for muscle contraction.
  • And its world was a narrow swamp, a grey, nubiferous environment, where it lived its contented, active, idyllic, almost mindless existence. The Voyage of the Space Beagle
  • Simply inserting the word "conservation" in the pesticide label and slightly watering down the percentage of the active ingredient, brodifacoum, does not make this rodenticide safe for wildlife, nor will it make it any less persistent. Maggie Sergio: The Proposal to Poison a Wildlife Refuge
  • The development of innovative new technologies and highly specific, nonradioactive labels has changed all of that. The Scientist
  • AMEN: Grassroots Football is an incredible interactive roadbook from photographer Jessica Hilltout that depicts the essence of soccer as experienced throughout the African continent. Daniel Maree: Six Positively Promising World Cup Campaigns You Might Have Missed
  • She knew now how attractive Miguel could be when he wanted to be, and she knew he could manipulate her feelings.
  • Egg-laying adults are especially active during bloom, a time period when insecticides should not be applied.
  • Mansur Rajih had been politically active for most of his adult life.
  • The attractive forces between molecules in a liquid are called surface tension forces and are what hold the liquid together.
  • Else Lynes had also brought along her active class to perform a display item before a most appreciative audience.
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