A rev is an informal term; it is an abbreviation for a revolution of the crankshaft within an engine. The related verb means ‘to accelerate’ and it can have an engine, vehicle, or driver as its subject. Rev is also used figuratively, often followed by up, about other things and means ‘to increase’ in both activity and…
A bud is the small part on the end of a plant from which leaves or flowers grow. In some organisms, a bud is a prominence that develops into a new individual, and in general, any round small rounded part on a body can be called a bud, especially the rounded protuberances from which horns sprout. Figuratively, an…
