n.
Pronunciation: ' w ə rk- ˌ ho ̇ rs
Function: noun
Date: 1543
1 : a horse used chiefly for labor as distinguished from driving, riding, or racing
2 a (1) : a person who performs most of the work of a group task (2) : a hardworking person b : something that is markedly useful, durable, or dependable c : HORSE 7