gross profit vs gross profit margin

gross profit and gross profit margin both are nouns.

Word	Noun	Adjective	Verb	Adverb
gross profit	Yes	No	No	No
gross profit margin	Yes	No	No	No

As nouns, gross profit and gross profit margin are synonyms defined as:

gross profit and gross profit margin: (finance) the net sales minus the cost of goods and services sold

Other synonyms of gross profit include margin.

gross profit (noun)	gross profit margin (noun)
(finance) the net sales minus the cost of goods and services sold	(finance) the net sales minus the cost of goods and services sold