A male deer, antelope, rabbit, or hare. The buck leapt gracefully over the fallen log in the forest.
A dollar; a unit of currency in the United States. He paid ten bucks for the movie ticket.
A young man or a dashing fellow. The young buck strutted confidently into the room.
A sturdy support or frame on which workpieces, especially logs or timber, are placed for sawing; a sawhorse. They propped the log on a buck before cutting it with the chainsaw.
A sudden leaping movement made by an animal, vehicle, or mechanical device. With a violent buck, the bronco nearly unseated its rider.
Responsibility or blame, especially as something that may be passed from one person to another. The buck stops here—I'm the one who made the decision.