margarine vs oleo

margarine and oleo both are nouns.

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

As nouns, margarine and oleo are synonyms defined as:

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

Other synonyms of margarine include margarin, marge, oleomargarine.

margarine (noun)	oleo (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