| Noun | 1. | warhorse - a work of art (composition or drama) that is part of the standard repertory but has become hackneyed from much repetitionwork of art - art that is a product of one of the fine arts (especially a painting or sculpture of artistic merit) drama - the literary genre of works intended for the theater | |
| 2. | warhorse - an experienced person who has been through many battles; someone who has given long serviceexpert - a person with special knowledge or ability who performs skillfully | |
| 3. | warhorse - horse used in warcharger - formerly a strong horse ridden into battle steed - (literary) a spirited horse for state or war | |