Think  —v. (past and past part. Thought) 1 be of the opinion (think that they will come). 2 judge or consider (is thought to be a fraud). 3 exercise the mind (let me think for a moment). 4 (foll. By of or about) a consider; be or become aware of. B form or entertain the idea of; imagine. 5 have a half-formed intention (i think i'll stay). 6 form a conception of. 7 recognize the presence or existence of (thought no harm in it). —n. Colloq. Act of thinking (have a think).  think again revise one's plans or opinions. Think aloud utter one's thoughts as soon as they occur. Think better of change one's mind about (an intention) after reconsideration. Think fit see *fit1. Think little (or nothing) of consider to be insignificant. Think much (or a lot or highly) of have a high opinion of. Think out 1 consider carefully. 2 produce (an idea etc.) By thinking. Think over reflect upon in order to reach a decision. Think through reflect fully upon (a problem etc.). Think twice use careful consideration, avoid hasty action, etc. Think up colloq. Devise. [old english]