Activity undertaken as part of a commercial enterprise(noun)
WordNet. Princeton University. 2010.
Use "commercial activity" in a sentence
"To that end, the Congress called for committees to be elected “in every county, city, and town” in America that would monitor commercial activity and publicize any violations of the Association, “that all such foes of the rights of British-America might be publicly known, and universally condemned as the enemies of American liberty.”"
"This well-protected settlement had long been the center of commercial activity in the area and had served as the capital of the Chalcidic Confederacy against Sparta, then against Athens."