workhorse

• POS: Noun
• HYPHEN: work=horse

OXFORD DICTIONARY

workhorse, n. a horse, person, or machine that performs hard work.

THESAURUS

workhorse

beast of burden, bidet, buck, carriage horse, cart horse, cavalry horse, draft horse, dray horse, driving horse, drudge, fag, fill horse, filler, galley slave, gigster, greasy grind, grind, grub, hack, hackney, horse, hunter, jument, lead, leader, mount, pack horse, palfrey, peon, plodder, plow horse, pole horse, polo pony, post-horse, remount, rider, riding horse, road horse, roadster, rouncy, saddle horse, saddler, sawbuck, shaft horse, slave, slavey, slogger, stalking-horse, sumpter, sumpter horse, swot, thill horse, thiller, toiler, trestle, wheeler, wheelhorse