pony

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of several types or breeds of horses that are small in size when full grown, such as the Shetland pony.
2. n. Informal A racehorse.
3. n. Sports A polo horse.
4. n. Something small for its kind, especially a small glass for beer or liqueur.
5. n. A word-for-word translation of a foreign language text, especially one used secretly by students as an aid in studying or test-taking. Also called crib, trot.
6. n. Chiefly British The sum of 25 pounds.
7. v. To study with the aid of a pony: pony a lesson; ponied all night before the exam.
8. pony up Slang To pay (money owed or due).

Century Dictionary and Cyclopedia

1. n. A very small horse; specifically, a horse less than 13 hands in height. The Shetland breed of ponies are stoutly built, active and hardy, with very full mane and tail, and of gentle, docile disposition. In western parts of the United States all the small hardy horses (mustangs or broncos) used by the Indians are called ponies.
2. n. The sum of £25.
3. n. A translation of a Greek or Latin author used unfairly in the preparation of lessons; hence, any book so used: same as horse, 9. [School and college slang.]
4. n. A very small drinking-glass. A glass holding about a mouthful of spirits, as brandy.
5. n. The quantity (of liquor) contained in such a glass.
6. n. A small raft of logs.
7. n. In the West Indies, a small tree, Tecoma serratifolia.
8. To use a pony in translating: as, to pony a piece of Latin.
9. n. Something very small of its kind: an attributive use.
10. To pay; settle; put: with up.

Wiktionary

1. adj. Cockney rhyming slang Of little worth.
2. n. Any of several small breeds of horse under 14.2 hands.
3. n. regional A small serving of an alcoholic beverage.
4. n. Australia, New South Wales, Victoria A serving of 140 millilitres of beer.
5. n. UK, slang Twenty-five pounds sterling.
6. n. US, slang A translation used as a study aid; loosely, a crib, a cheat-sheet.
7. n. Cockney rhyming slang (from "pony and trap") Crap; rubbish, nonsense.
8. v. transitive To lead (a horse) from another horse.

GNU Webster's 1913

1. n. A small horse.
2. n. Slang, Eng. Twenty-five pounds sterling.
3. n. College Cant A translation or a key used to avoid study in getting lessons; a crib; a trot.
4. n. Slang A small glass of beer.

WordNet 3.0

1. n. a range horse of the western United States
2. n. an informal term for a racehorse
3. n. a small glass adequate to hold a single swallow of whiskey
4. n. any of various breeds of small gentle horses usually less than five feet high at the shoulder
5. n. a literal translation used in studying a foreign language (often used illicitly)