puck

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A hard rubber disk used in ice hockey.

Century Dictionary and Cyclopedia

1. n. A fairy; elf; sprite.
2. n. Specifically [capitalized] A fairy of high repute. who was also known by the names of Robin Goodfellow and Friar Rush. His character and attributes are depicted in Shakspere's “Midsummer Night's Dream.” He was the chief of the domestic tribe of fairies, or brownies as they are called in Scotland.
3. n. The devil; Satan.
4. n. A disk of rubber used in place of a ball in hockey.

Wiktionary

1. n. A hard hard rubber disc used in ice hockey; any other flat disc meant to be hit across a flat surface in a game.
2. n. An object shaped like a puck.
3. n. A pointing device with a crosshair.
4. n. A mischievous spirit.

GNU Webster's 1913

1. n. A celebrated fairy, “the merry wanderer of the night;” -- called also Robin Goodfellow, Friar Rush, Pug, etc.
2. n. The goatsucker.
3. n. A disk of vulcanized rubber used in the game of hockey, as the object to be driven through the goals.

WordNet 3.0

1. n. a mischievous sprite of English folklore
2. n. a vulcanized rubber disk 3 inches in diameter that is used instead of a ball in ice hockey