Noun:
1: muse in ancient Greek mythology any of 9 daughters of Zeus and Mnemosyne; protector of an art or science
2: muse the source of an artist's inspiration; "Euterpe was his muse"
Verb:
1: ponder, meditate, speculate, excogitate, contemplate, muse, ruminate, think over, mull over, mull, chew over, reflect reflect deeply on a subject; "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"