commercial activity(n = noun.act) business activity - activity undertaken as part of a commercial enterprise;
is a kind of endeavor, endeavour, enterprise
is a part of business, business enterprise, commercial enterprise
has particulars: operation, business, wash

activity, advanced research and development activity, agglutinating activity, bond-trading activity, business activity, commercial, commercial agency, commercial art, commercial artist, commercial bank, commercial bribery, commercial credit, commercial credit company, commercial document, commercial enterprise, commercial finance company, commercial instrument, commercial law, commercial letter of credit, commercial loan, commercial message, commercial paper, commercial traveler, commercial traveller, commercial treaty, creative activity, educational activity, extracurricular activity, government activity, human activity, intelligence activity, marine corps intelligence activity, offensive activity, optical activity, sensory activity, sex activity, sexual activity, social activity, spare-time activity, subversive activity