penny ante vs business deal

penny ante and business deal both are nouns.

Word	Noun	Adjective	Verb	Adverb
penny ante	Yes	No	No	No
business deal	Yes	No	No	No

As nouns, business deal is a hypernym of penny ante; that is, business deal is a word with a broader meaning than penny ante:

Other hypernyms of penny ante include deal, trade.

penny ante (noun)	business deal (noun)
poker played for small stakes	a particular instance of buying or selling
a business deal on a trivial scale