Past tense and past participle of think. The act or process of thinking; cogitation. A product of thinking. See Synonyms at idea. The faculty of thinking or reasoning. The intellectual activity or production of a particular time or group: ancient Greek thought; deconstructionist thought. Consideration; attention: didn't give much thought to what she said. Intention; purpose: There was no thought of coming home early. Expectation or conception: She had no thought that anything was wrong. a thought To a small degree; somewhat: You could be a thought more considerate.