n A hoofed mammal, Equus ferus caballus, often used throughout history for riding and draft work.
n Any member of the species Equus ferus, including the Przewalski's horse and the extinct Equus ferus ferus.
n (zoology) Any current or extinct animal of the family Equidae, including zebras and asses.
n (military, sometimes uncountable) Cavalry soldiers (sometimes capitalized when referring to an official category).
n A component of certain games.
n (chess, informal) The chess piece representing a knight, depicted as a horse.
n (xiangqi) A xiangqi piece that moves and captures one point orthogonally and then one point diagonally.
n (slang) A large and sturdy person.
n (historical) A timber frame shaped like a horse, which soldiers were made to ride for punishment.
n Equipment with legs.
n In gymnastics, a piece of equipment with a body on two or four legs, approximately four feet high, sometimes (pommel horse) with two handles on top.
n A frame with legs, used to support something.
n (nautical) Type of equipment.
n A rope stretching along a yard, upon which men stand when reefing or furling the sails; footrope.
n A breastband for a leadsman.
n An iron bar for a sheet traveller to slide upon.
n A jackstay.
n (mining) A mass of earthy matter, or rock of the same character as the wall rock, occurring in the course of a vein, as of coal or ore; hence, to take horse (said of a vein) is to divide into branches for a distance.
n (US) An informal variant of basketball in which players match shots made by their opponent(s), each miss adding a letter to the word "horse", with 5 misses spelling the whole word and eliminating a player, until only the winner is left. Also HORSE, H-O-R-S-E or H.O.R.S.E. (see H-O-R-S-E on Wikipedia.Wikipedia).
n (uncountable) The flesh of a horse as an item of cuisine.
n (prison slang) A prison guard who smuggles contraband in or out for prisoners.
n (dated, slang, among students) A translation or other illegitimate aid in study or examination.
n (dated, slang, among students) Horseplay; tomfoolery.
n (poker slang) A player who has been staked, i.e. another player has paid for their buy-in and claims a percentage of any winnings.
v (intransitive) Synonym of horse around
v (transitive) To play mischievous pranks on.
v (transitive) To provide with a horse; supply horses for.
v (obsolete) To get on horseback.
v To sit astride of; to bestride.
v (of a male horse) To copulate with (a mare).
v To take or carry on the back.
v To place (someone) on the back of another person, or on a wooden horse, chair, etc., to be flogged or punished.
v (by extension) To flog.
v (transitive) To pull, haul, or move (something) with great effort, like a horse would.
v (informal) To cram (food) quickly, indiscriminately or in great volume.
v (transitive, dated) To urge at work tyrannically.
v (intransitive, dated) To charge for work before it is finished.
n (slang) Heroin (drug).
n A poker variant consisting of five different poker variants, with the rules changing from one variant to the next after every hand.
n The seventh of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar.
n Alternative spelling of horse (“variant of basketball”) [A hoofed mammal, Equus ferus caballus, often used throughout history for riding and draft work.]