importing vs commerce

importing and commerce both are nouns.

Word	Noun	Adjective	Verb	Adverb
importing	Yes	No	No	No
commerce	Yes	No	No	No

As nouns, commerce is a hypernym of importing; that is, commerce is a word with a broader meaning than importing:

importing: the commercial activity of buying and bringing in goods from a foreign country
commerce: transactions (sales and purchases) having the objective of supplying commodities (goods and services)

Other hypernyms of importing include commercialism, mercantilism.

importing (noun)	commerce (noun)
the commercial activity of buying and bringing in goods from a foreign country	transactions (sales and purchases) having the objective of supplying commodities (goods and services)
	social exchange, especially of opinions, attitudes, etc.