To think is to have an idea, belief, or thought about something. If you think that your parents are unusually strict, it means that you believe that to be true.

The verb think means to reason, consider, or mull over. If you think for a while before you decide whether or not to get in your friend's car, it means that you're contemplating the situation before you act. If you think that people shouldn't eat animals, it means that you hold that opinion. If you think up a new, delicious way to cook broccoli, it means that you've invented or conceived of a great cooking method.

Definitions of think
  1. verb
    judge or regard; look upon; judge
    “I think he is very smart”
    “I think that he is her boyfriend”
    synonyms: believe, conceive, consider
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    remain committed to
    change one's mind
    esteem, look on, look upon, perceive, regard as, repute, take to be, think of
    look on as or consider
    have a feeling or perception about oneself in reaction to someone's behavior or attitude
    consider, reckon, regard, see, view
    deem to be
    consider reasonable or due
    regard favorably or with disapproval
    consider again; give new consideration to; usually with a view to changing
    consider again (a bill) that had been voted upon before, with a view to altering it
    consider as part of something
    modify one's opinion, make it less strong
    change one's mind and assume the opposite viewpoint
    regard or treat with consideration, respect, and esteem
    consider or regard as being
    feel about or towards; consider, evaluate, or regard
    relativise, relativize
    consider or treat as relative
    consider (oneself) as similar to somebody else
    favor, favour
    consider as the favorite
    consider a concept without thinking of a specific example; consider abstractly or theoretically
    consider an abstract concept to be real
    idealise, idealize
    consider or render as ideal
    deem, hold, take for, view as
    keep in mind or convey as a conviction or view
    esteem, prise, prize, respect, value
    regard highly; think much of
    disesteem, disrespect
    have little or no respect for; hold in contempt
    consider as being
    capitalise, capitalize
    consider expenditures as capital assets rather than expenses
    appreciate, prize, treasure, value
    hold dear
    type of:
    evaluate, judge, pass judgment
    form a critical opinion of
  2. verb
    recall knowledge from memory; have a recollection
    “I can't think what her last name was”
    synonyms: call back, call up, recall, recollect, remember, retrieve
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    blank out, block, draw a blank, forget
    be unable to remember
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    perceive as familiar
    recognise, recognize
    perceive to be the same
    brush up, refresh, review
    refresh one's memory
    consider to be equal or the same
  3. verb
    have or formulate in the mind
    think good thoughts”
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    type of:
    cerebrate, cogitate
    use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
  4. verb
    imagine or visualize
    “Just think--you could be rich one day!”
    Think what a scene it must have been!”
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    type of:
    conceive of, envisage, ideate, imagine
    form a mental image of something that is not present or that is not the case
  5. verb
    decide by pondering, reasoning, or reflecting
    “Can you think what to do next?”
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    type of:
    cerebrate, cogitate
    use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
  6. verb
    dispose the mind in a certain way
    “Do you really think so?”
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    type of:
    believe, conceive, consider
    judge or regard; look upon; judge
  7. verb
    be capable of conscious thought
    “Man is the only creature that thinks
  8. verb
    use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
    “I've been thinking all day and getting nowhere”
    synonyms: cerebrate, cogitate
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    puzzle over
    try to solve
    rationalise, rationalize
    think rationally; employ logic or reason
    philosophise, philosophize
    reason philosophically
    try to solve a problem by thinking intensely about it
    chew over, contemplate, excogitate, meditate, mull, mull over, muse, ponder, reflect, ruminate, speculate, think over
    reflect deeply on a subject
    think logically
    conclude, reason, reason out
    decide by reasoning; draw or come to a conclusion
    evaluate, judge, pass judgment
    form a critical opinion of
    contemplate, meditate, study
    think intently and at length, as for spiritual purposes
    make plans for something
    associate, colligate, connect, link, link up, relate, tie in
    make a logical or causal connection
    center, centre, concentrate, focus, pore, rivet
    direct one's attention on something
    devote, give, pay
    think about
    have on one's mind, think about actively
    (of the mind or thoughts) move or wander from one topic to another; think about in an aimless way
    absorb, engross, engulf, immerse, plunge, soak up, steep
    devote (oneself) fully to
    exercise, or have the power of, memory
    rationalise away, rationalize away
    substitute a natural for a supernatural explanation of
    think or reflect beforehand or in advance
    theologise, theologize
    make theoretical speculations about theology or discuss theological subjects
    reflect on one's own thoughts and feelings
    form or construct theories
    construct a theory about
    reason methodologically and logically
    reason or establish by induction
    deduce, deduct, derive, infer
    reason by deduction; establish by deduction
    calculate, cipher, compute, cypher, figure, reckon, work out
    make a mathematical calculation or computation
    syllogise, syllogize
    reason by syllogisms
    categorise, categorize
    place into or assign to a category
    grade, order, place, range, rank, rate
    assign a rank or rating to
    have or maintain a position or stand on an issue
    judge to be right or commendable; think well of
    consider bad or wrong
    plan for an activity or event
    see fit or proper to act in a certain way; decide to act in a certain way
    judge beforehand, especially without sufficient evidence
    appraise, assess, evaluate, measure, valuate, value
    evaluate or estimate the nature, quality, ability, extent, or significance of
    appraise anew
    consider or ponder something carefully
    refuse to accept or acknowledge
    consider or hold as true
    believe, conceive, consider
    judge or regard; look upon; judge
    consider carefully and deeply; reflect upon; turn over in one's mind
    plan in detail
    project, propose
    present for consideration, examination, criticism, etc.
    compose, draw up, frame
    make up plans or basic details for
    plan secretly, usually something illegal
    devise a system or form a scheme for
    designate, destine, intend, specify
    design or destine
    direct, engineer, mastermind, orchestrate, organise, organize
    plan and direct (a complex undertaking)
    lay out
    provide a detailed plan or design
    calculate, count on, estimate, figure, forecast, reckon
    judge to be probable
    place into a mutual relationship
    bring into a mutual, complementary, or reciprocal relation
    conceive of as united or associated
    associate freely
    feel, find
    come to believe on the basis of emotion, intuitions, or indefinite grounds
    anticipate, expect
    regard something as probable or likely
    cause one's (or someone else's) thoughts or attention to return from a reverie or digression
    be concerned with or about something or somebody
    ascribe, assign, attribute, impute
    attribute or credit to
    have in mind, mean, think of
    intend to refer to
    consider, deal, look at, take
    take into consideration for exemplifying purposes
    assign, attribute
    decide as to where something belongs in a scheme
    make a schedule; plan the time and place for events
    disapprove, reject
    deem wrong or inappropriate
    adjudge, declare, hold
    declare to be
    critique, review
    appraise critically
    question, wonder
    place in doubt or express doubtful speculation
    talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion
    deduce, infer
    conclude by reasoning; in logic
    conclude from evidence
    extrapolate, generalise, generalize, infer
    draw from specific cases for more general cases
    be uncertain about; think about without fully understanding or being able to decide
    zoom in
    examine closely; focus one's attention on
    consider, study
    give careful consideration to
    hear, listen, take heed
    listen and pay attention
    judge unacceptable
    accept or judge as acceptable
    essay, examine, prove, test, try, try out
    put to the test, as for its quality, or give experimental use to
  9. verb
    focus one's attention on a certain state
    Think big”
    think thin”
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    center, centre, concentrate, focus, pore, rivet
    direct one's attention on something
  10. verb
    ponder; reflect on, or reason about
    Think the matter through”
    Think how hard life in Russia must be these days”
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    type of:
    cerebrate, cogitate
    use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
  11. noun
    an instance of deliberate thinking
    “I need to give it a good think
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    advisement, deliberation, weighing
    careful consideration
  12. verb
    expect, believe, or suppose
    “I thought to find her in a bad state”
    “he didn't think to find her in the kitchen”
    synonyms: guess, imagine, opine, reckon, suppose
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    hold in suspicion; believe to be guilty
    type of:
    anticipate, expect
    regard something as probable or likely
  13. verb
    have in mind as a purpose
    “She didn't think to harm me”
    “We thought to return early that night”
    synonyms: intend, mean
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    intend or have as a purpose
    be after, plan
    have the will and intention to carry out some action
    aim, propose, purport, purpose
    propose or intend
    think out
    consider carefully and rationally
    aim, aspire, draw a bead on, shoot for
    have an ambitious plan or a lofty goal
    go for, hope
    intend with some possibility of fulfilment
  14. verb
    bring into a given condition by mental preoccupation
    “She thought herself into a state of panic over the final exam”
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    type of:
    alter, change, modify
    cause to change; make different; cause a transformation
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