stale

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Having lost freshness, effervescence, or palatability: stale bread; stale air.
2. adj. Lacking originality or spontaneity: a stale joke.
3. adj. Impaired in efficacy, vigor, or spirit, as from inactivity or boredom.
4. adj. Law Having lost effectiveness or force through lack of exercise or action.
5. v. To make or become stale.
6. v. To urinate. Used especially of horses and camels.
7. n. The urine of certain animals, especially horses and camels.

Century Dictionary and Cyclopedia

1. n. Theft; stealing; pilfering.
2. n. Stealth; stealthy movement.
3. n. Concealment; ambush.
4. n. A trap, gin, or snare.
5. n. An allurement; a bait; a decoy; a stool-pigeon: as, a stale for a foist or pickpocket.
6. n. An object of deception, scorn, derision, merriment, ridicule, or the like; a dupe; a laughing-stock.
7. n. A stalk; stem.
8. n. The stem of an arrow.
9. n. A handle; especially, a long handle, as that of a rake, ladle, etc.
10. n. A round or rung of a ladder; a step.
11. Old (and therefore strong): said of malt liquors, which in this condition were more in demand.
12. Old and lifeless; the worse for age or for keeping; partially spoiled. Insipid, flat, or sour; having lost its sparkle or life, especially from exposure to air: as, stale beer, etc.
13. Old and trite; lacking in novelty or freshness; hackneyed: as, stale news; a stale jest.
14. In athletics, overtrained; injured by overtraining: noting the person or his condition. Synonyms Time-worn, threadbare.
15. n. That which has become flat and tasteless, or spoiled by use or exposure, as stale beer.
16. n. A prostitute.
17. n. A stalemate.
18. To render stale, flat, or insipid; deprive of freshness, attraction, or interest; make common or cheap.
19. To make water; urinate: said of horses and cattle.
20. n. Urine of horses and cattle.
21. n. An old preterit of steal.
22. To be overtrained; be injured by the strain of long training, so that the response to stimulus, mental or physical, is impaired: said of horses and athletes, and also used figuratively.

Wiktionary

1. adj. Having lost its freshness from age; (of food) still edible, but hard or unpleasant from age.
2. adj. No longer new; no longer interesting; established; old; as, stale news, a stale joke, etc.
3. n. obsolete A bird used as a decoy to trap other birds.
4. n. obsolete Any trap or lure.
5. n. obsolete A low class of prostitute (originally used as a decoy by other criminals).
6. n. obsolete A person's position, especially in a battle-line.
7. n. obsolete An ambush.
8. n. obsolete A division of armed men posted in a specific place, either for an ambush or for other reasons.
9. n. a handle of a broom or rake
10. n. Urine, especially of horses or cattle.
11. v. To urinate (of livestock, especially horses)

GNU Webster's 1913

1. n. The stock or handle of anything.
2. adj. Vapid or tasteless from age; having lost its life, spirit, and flavor, from being long kept.
3. adj. Not new; not freshly made.
4. adj. Having lost the life or graces of youth; worn out; decayed.
5. adj. Worn out by use or familiarity; having lost its novelty and power of pleasing; trite; common.
6. v. To make vapid or tasteless; to destroy the life, beauty, or use of; to wear out.
7. v. To make water; to discharge urine; -- said especially of horses and cattle.
8. n. obsolete That which is stale or worn out by long keeping, or by use.
9. n. obsolete A prostitute.
10. n. Urine, esp. that of beasts.
11. n. obsolete Something set, or offered to view, as an allurement to draw others to any place or purpose; a decoy; a stool pigeon.
12. n. obsolete A stalking-horse.
13. n. (Chess), obsolete A stalemate.
14. n. obsolete A laughingstock; a dupe.

WordNet 3.0

1. adj. lacking originality or spontaneity; no longer new
2. v. urinate, of cattle and horses
3. adj. lacking freshness, palatability, or showing deterioration from age