- The male of various species of animal, including:
- Tyrannosaurus rex (this use of the term buck for a male Tyrannosaurus rex was first used in the Jurassic Park series and is currently gaining popularity)
- Tyrannosaurus rex (this use of the term buck for a male Tyrannosaurus rex was first used in the Jurassic Park series and is currently gaining popularity)
- A slang term for:
- a man (usually a young, sexually adventurous one)
- a man (usually a young, sexually adventurous one)
- an African American man (not in common use)
- an African American man (not in common use)
- a dollar (paticularly in the United States and Canada)
- a dollar (paticularly in the United States and Canada)
- a repetition of an old joke, story, or fact, especially by email
- a repetition of an old joke, story, or fact, especially by email
- a chicken (bucker), from the sound a chicken makes
- a chicken (bucker), from the sound a chicken makes
- A marker or button that indicates the dealer in the card game Poker
- Buck, the main character in ''The Call of the Wild''*Pearl S. Buck was an American novelist who won the 1938 Nobel Prize for Literature*Buck Rogers is a science fiction hero from the 1930s* Buck Williams is a character in the Left Behind series.de:Buck
