old stager vs warhorse

old stager and warhorse both are nouns.

Word	Noun	Adjective	Verb	Adverb
old stager	Yes	No	No	No
warhorse	Yes	No	No	No

As nouns, old stager and warhorse are synonyms defined as:

old stager and warhorse: an experienced person who has been through many battles; someone who has given long service

Other synonyms of old stager include old-timer, old hand, oldtimer, stager, veteran.

old stager (noun)	warhorse (noun)
an experienced person who has been through many battles; someone who has given long service	horse used in war
	a work of art (composition or drama) that is part of the standard repertory but has become hackneyed from much repetition
	an experienced person who has been through many battles; someone who has given long service