ottoman vs footrest

ottoman and footrest both are nouns.

Word	Noun	Adjective	Verb	Adverb
ottoman	Yes	No	No	No
footrest	Yes	No	No	No

As nouns, ottoman and footrest are synonyms defined as:

ottoman and footrest: a low seat or a stool to rest the feet of a seated person

Other synonyms of ottoman include footstool, tuffet.

ottoman (noun)	footrest (noun)
thick cushion used as a seat	a low seat or a stool to rest the feet of a seated person
a low seat or a stool to rest the feet of a seated person