importation vs commercialism

importation and commercialism both are nouns.

Word	Noun	Adjective	Verb	Adverb
importation	Yes	No	No	No
commercialism	Yes	No	No	No

As nouns, commercialism is a hypernym of importation; that is, commercialism is a word with a broader meaning than importation:

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

Other hypernyms of importation include commerce, mercantilism.

importation (noun)	commercialism (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)
commodities (goods or services) bought from a foreign country