名詞 war-horse:

1. a work of art (composition or drama) that is part of the standard repertory but has become hackneyed from much repetition
   同義詞：warhorse
2. an experienced person who has been through many battles; someone who has given long service
   同義詞：veteran, old-timer, oldtimer, old hand, warhorse, old stager, stager
3. horse used in war
   同義詞：warhorse