oleo vs oleomargarine

oleo and oleomargarine both are nouns.

Word	Noun	Adjective	Verb	Adverb
oleo	Yes	No	No	No
oleomargarine	Yes	No	No	No

As nouns, oleo and oleomargarine are synonyms defined as:

oleo and oleomargarine: a spread made chiefly from vegetable oils and used as a substitute for butter

Other synonyms of oleo include margarin, margarine, marge.

oleo (noun)	oleomargarine (noun)
a spread made chiefly from vegetable oils and used as a substitute for butter	a spread made chiefly from vegetable oils and used as a substitute for butter