turn over vs commerce

turn over is not a noun while commerce is a noun.

Word	Noun	Adjective	Verb	Adverb
turn over	No	No	Yes	No
commerce	Yes	No	No	No

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

turn over (verb)	commerce (verb)
think about carefully; weigh
turn up, loosen, or remove earth
turn upside down, or throw so as to reverse
turn from an upright or normal position
cause to overturn from an upright or normal position
move by turning over or rotating
cause to move around a center so as to show another side of
place into the hands or custody of
do business worth a certain amount of money