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English definition of “think”

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think

verb  /θɪŋk/ ( past tense and past participle thought  /θɔt/) us  

think verb (HAVE OPINION)

[I/T] to have or to form an opinion or idea about something: [T] "Do you think this is the right address?" "I don’t think so." [I] It doesn’t make much sense when you think about it. [I/T] Cloning animals has happened sooner than anyone thought (it would). [T] I always thought he was a bit weird. [I] What do you think of my new hat? [I] I’ll always think of him as someone I can rely on. [+ (that) clause] I think (that) I’d better go now. I still think of myself as (= believe I am) her friend.

think verb (USE REASON)

[I] to use your mind to understand matters, make judgments, and solve problems: I’ll have to think about this. She was thinking about running for the Senate. I can’t think of anything to say right now.

think verb (REMEMBER)

[I always + adv/prep] to remember or imagine: I can’t stop thinking about her. I can picture her, I just can’t think of her name. Think back to the early days of the Civil War.
(Definition of think from the Cambridge Academic Content Dictionary © Cambridge University Press)
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