Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


verb \ˈthiŋk\

Simple Definition of think

  • : to believe that something is true, that a particular situation exists, that something will happen, etc.

  • : to have an opinion about someone or something

  • : to form or have (a particular thought) in your mind

Source: Merriam-Webster's Learner's Dictionary

Full Definition of think


play \ˈthȯt\


  1. transitive verb
  2. 1 :  to form or have in the mind

  3. 2 :  to have as an intention <thought to return early>

  4. 3a :  to have as an opinion <think it's so>b :  to regard as :  consider <think the rule unfair>

  5. 4a :  to reflect on :  ponder <think the matter over>b :  to determine by reflecting <think what to do next>

  6. 5 :  to call to mind :  remember <he never thinks to ask how we do>

  7. 6 :  to devise by thinking —usually used with up <thought up a plan to escape>

  8. 7 :  to have as an expectation :  anticipate <we didn't think we'd have any trouble>

  9. 8a :  to center one's thoughts on <talks and thinks business>b :  to form a mental picture of

  10. 9 :  to subject to the processes of logical thought <think things out>

  11. intransitive verb
  12. 1a :  to exercise the powers of judgment, conception, or inference :  reasonb :  to have in the mind or call to mind a thought

  13. 2a :  to have the mind engaged in reflection :  meditateb :  to consider the suitability <thought of her for president>

  14. 3 :  to have a view or opinion <thinks of himself as a poet>

  15. 4 :  to have concern —usually used with of <a man must think first of his family>

  16. 5 :  to consider something likely :  suspect <may happen sooner than you think>



think better of

  1. :  to reconsider and make a wiser decision

think much of

  1. :  to view with satisfaction :  approve —usually used in negative constructions <I didn't think much of the new car>

Examples of think in a sentence

  1. We may finish sooner than you think.

  2. You should relax and try to think pleasant thoughts.

  3. I was just thinking what it would be like to be a doctor.

  4. I dread to think how he will react.

  5. Why do you always think the worst?

  6. Just think how nice it would be to live here.

  7. Just think—in two days we'll be on vacation, lying on the beach.

Origin and Etymology of think

Middle English thenken, from Old English thencan; akin to Old High German denken to think, Latin tongēre to know — more at thanks

First Known Use: before 12th century

Synonym Discussion of think

think, conceive, imagine, fancy, realize, envisage, envision mean to form an idea of. think implies the entrance of an idea into one's mind with or without deliberate consideration or reflection <I just thought of a good joke>. conceive suggests the forming and bringing forth and usually developing of an idea, plan, or design <conceived of a new marketing approach>. imagine stresses a visualization <imagine you're at the beach>. fancy suggests an imagining often unrestrained by reality but spurred by desires <fancied himself a super athlete>. realize stresses a grasping of the significance of what is conceived or imagined <realized the enormity of the task ahead>. envisage and envision imply a conceiving or imagining that is especially clear or detailed <envisaged a totally computerized operation> <envisioned a cure for the disease>.think, cogitate, reflect, reason, speculate, deliberate mean to use one's powers of conception, judgment, or inference. think is general and may apply to any mental activity, but used alone often suggests attainment of clear ideas or conclusions <teaches students how to think>. cogitate implies deep or intent thinking <cogitated on the mysteries of nature>. reflect suggests unhurried consideration of something recalled to the mind <reflecting on fifty years of married life>. reason stresses consecutive logical thinking <able to reason brilliantly in debate>. speculate implies reasoning about things theoretical or problematic <speculated on the fate of the lost explorers>. deliberate suggests slow or careful reasoning before forming an opinion or reaching a conclusion or decision <the jury deliberated for five hours>.




Simple Definition of think

  • : an act of thinking about something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of think

  1. :  an act of thinking <has another think coming>

Examples of think in a sentence

  1. I'd have another think about doing that if I were you.

  2. Feel free to have a good think about it before you say yes.


First Known Use of think





Definition of think

  1. :  relating to, requiring, or stimulating thinking


First Known Use of think


THINK Defined for Kids


verb \ˈthiŋk\

Definition of think for Students




  1. 1 :  to have as an opinion or belief <I think you can do it.>

  2. 2 :  to form or have in the mind <We were afraid to even think what had happened.>

  3. 3 :  remember 1 <I didn't think to ask.>

  4. 4 :  to use the power of the mind to understand, find out, or decide <You're just not thinking.>

  5. 5 :  to consider for some time :  ponder <I'm still thinking it over.>

  6. 6 :  to invent something by thinking <She tried to think up an excuse.>

  7. 7 :  to hold a strong feeling <They think highly of you.>

  8. 8 :  to have as a plan <I think I'll call first.>

  9. 9 :  to care about <I must think first of my family.>



Seen and Heard

What made you want to look up think? Please tell us where you read or heard it (including the quote, if possible).


of or relating to the heavens

Get Word of the Day daily email!


Take a 3-minute break and test your skills!


Which is a synonym of asperse?

divulge placate defame beat
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.