ostler vs groom

ostler and groom both are nouns.

Word	Noun	Adjective	Verb	Adverb
ostler	Yes	No	No	No
groom	Yes	No	Yes	No

As nouns, ostler and groom are synonyms defined as:

ostler and groom: someone employed in a stable to take care of the horses

Other synonyms of ostler include hostler, stableboy, stableman.

ostler (noun)	groom (noun)
someone employed in a stable to take care of the horses	a man who has recently been married
	someone employed in a stable to take care of the horses
	a man participant in his own marriage ceremony

ostler (verb)	groom (verb)
	care for one's external appearance
	give a neat appearance to
	educate for a future role or function