IPO vs commercialism

IPO and commercialism both are nouns.

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

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

IPO: a corporation's first offer to sell stock to the public
commercialism: transactions (sales and purchases) having the objective of supplying commodities (goods and services)

Other hypernyms of IPO include commerce, mercantilism.

IPO (noun)	commercialism (noun)
a corporation's first offer to sell stock to the public	transactions (sales and purchases) having the objective of supplying commodities (goods and services)