commerce vs conversation

commerce and conversation both are nouns.

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

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

commerce: social exchange, especially of opinions, attitudes, etc.
conversation: the use of speech for informal exchange of views or ideas or information etc.

commerce (noun)	conversation (noun)
transactions (sales and purchases) having the objective of supplying commodities (goods and services)	the use of speech for informal exchange of views or ideas or information etc.
social exchange, especially of opinions, attitudes, etc.