'workhorse' definitions:
Definition of 'workhorse'
From: WordNet
noun
Machine that performs dependably under heavy use; "the IBM main frame computers have been the workhorse of the business world"
noun
A horse used for plowing and hauling and other heavy labor
Synonyms of 'workhorse'
From: Moby Thesaurus
- 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