sell up vs commerce

sell up is not a noun while commerce is a noun.

Word	Noun	Adjective	Verb	Adverb
sell up	No	No	Yes	No
commerce	Yes	No	No	No

sell up (noun)	commerce (noun)
	transactions (sales and purchases) having the objective of supplying commodities (goods and services)
	social exchange, especially of opinions, attitudes, etc.

sell up (verb)	commerce (verb)
sell or get rid of all one's merchandise