warhorse vs oldtimer

warhorse and oldtimer both are nouns.

Word	Noun	Adjective	Verb	Adverb
warhorse	Yes	No	No	No
oldtimer	Yes	No	No	No

As nouns, warhorse and oldtimer are synonyms defined as:

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

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

warhorse (noun)	oldtimer (noun)
horse used in war	an elderly man
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
an experienced person who has been through many battles; someone who has given long service