Definitions
1.nounAn old jaded horse.
2.nounSea gravel mixed with sand.
3.nounAny of several animals related to Equus ferus caballus.
4.nounEquipment with legs.
5.nounType of equipment.
6.nounA 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.
7.nounThe sedative, antidepressant, and anxiolytic drug morphine, chiefly when used illicitly.
8.nounAn 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 Variations of basketball#H-O-R-S-E).
9.noun(among students) A translation or other illegitimate aid in study or examination.
10.noun(among students) horseplay; tomfoolery
11.nounHeroin (drug)."Alright, mate, got any horse?"