Synonyms: cogitate
Definition: consider carefully and deeply; reflect upon; turn over in one's mind
Similar words: chew over, reflect, ponder, think over, speculate, ruminate, mull, mull over, muse, excogitate, contemplate, meditate
Definition: reflect deeply on a subject
Usage: I mulled over the events of the afternoon; philosophers have speculated on the question of God for thousands of years; The scientist must stop to observe and start to excogitate