v. 25B6; verb (formal) THINK (ABOUT), contemplate, consider, mull over, meditate, muse, ponder, reflect, deliberate, ruminate; dwell on, brood on, chew over, weigh up; informal put on one's thinking cap.
COGITATE
Meaning of COGITATE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012