Xem thêm: invent, contrive, devise, formulate, forge, chew over, think over, meditate, ponder, contemplate, muse, reflect, mull, mull over, ruminate, speculate
v.
excogitate a way to measure the speed of light
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