Main entry: 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
Main entry: study, meditate, contemplate
Definition: think intently and at length, as for spiritual purposes
Usage: He is meditating in his study