A a


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [ak-tuh-veyt]
    • /ˈæk təˌveɪt/
    • /ˈæk.tɪ.veɪt/
    • US Pronunciation
    • US IPA
    • [ak-tuh-veyt]
    • /ˈæk təˌveɪt/

Definitions of activation word

  • verb with object activation to make active; cause to function or act. 1
  • verb with object activation Physics. to render more reactive; excite: to activate a molecule. to induce radioactivity. 1
  • verb with object activation to aerate (sewage) in order to accelerate decomposition of impure organic matter by microorganisms. 1
  • verb with object activation Chemistry. to make (carbon, a catalyst, molecules, etc.) more active. to hasten (reactions) by various means, as heating. 1
  • verb with object activation to place (a military unit or station) on an active status in an assigned capacity. 1
  • noun activation Making active and effective. 1

Information block about the term

Origin of activation

First appearance:

before 1620
One of the 42% oldest English words
First recorded in 1620-30; active + -ate1

Historical Comparancy

Parts of speech for Activation


activation popularity

A common word. It’s meaning is known to most children of preschool age. About 77% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

activation usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for activation

noun activation

  • rebirth — a new or second birth: the rebirth of the soul.
  • incitement — the act of inciting.
  • provocation — the act of provoking.
  • revival — restoration to life, consciousness, vigor, strength, etc.
  • renewal — the act of renewing.

adj activation

  • refreshing — having the power to restore freshness, vitality, energy, etc.: a refreshing nap.
  • invigorating — to give vigor to; fill with life and energy; energize.
  • restorative — serving to restore; pertaining to restoration.
  • bracing — If you describe something, especially a place, climate, or activity as bracing, you mean that it makes you feel fresh and full of energy.
  • reinvigorating — to give vigor to; fill with life and energy; energize.

adjective activation

Antonyms for activation

noun activation

  • suppression — the act of suppressing.
  • destruction — Destruction is the act of destroying something, or the state of being destroyed.
  • sleep — to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.
  • sleeping — the state of a person, animal, or plant that sleeps.
  • hindrance — an impeding, stopping, preventing, or the like.

adj activation

  • boring — Someone or something boring is so dull and uninteresting that they make people tired and impatient.
  • depressing — Something that is depressing makes you feel sad and disappointed.

Top questions with activation

  • what is activation energy?
  • how to bypass icloud activation?
  • what is activation synthesis theory?
  • how to bypass activation lock?
  • how to bypass iphone activation lock?
  • how to bypass icloud activation on iphone 5s?
  • how do enzymes lower activation energy?
  • what happens to the rate constant as activation energy increases?
  • what is the activation synthesis theory?
  • which is the best definition of activation energy?
  • how to get past activation lock?
  • what letter represents the activation energy for the reverse reaction?
  • how to find activation energy?
  • how to bypass activation on iphone 4?
  • why does an exothermic reaction need activation energy?

See also

Matching words

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