at — meaning in English

English meaning

ate verb The past tense of "eat".
horse noun A large hoofed mammal with a mane and tail, long domesticated for riding, pulling loads, and farm work.
knight noun In medieval Europe, an armored warrior on horseback who served a lord, typically after training as a page and squire.

at is used for these senses in English:

ate (chemistry) forms derivatives of specified elements or compounds; especially salts or esters of an acid whose name ends in -ic
horse (chess, informal) The chess piece representing a knight, depicted as a horse.
horse Any member of the species Equus ferus, including the Przewalski's horse and the extinct Equus ferus ferus.
horse (dated, slang, among students) A translation or other illegitimate aid in study or examination.
knight (chess) A chess piece, often in the shape of a horse's head, that is moved two squares in one direction and one at right angles to that direction in a single move, leaping over any intervening pieces.

verb The past tense of "eat".
noun An older sister, or a respectful way of addressing a woman who is older than you, even if she is not a blood relative.

noun A large hoofed mammal with a mane and tail, long domesticated for riding, pulling loads, and farm work.
noun A padded piece of gymnastics equipment, or a simple frame with legs, used for support or exercise.
verb To fool around or engage in rough, playful behavior (usually as "horse around").