simple past tense and past participle of busy

Of businesses selling to other businesses.

business matters shouldn't be influenced by friendship or sentiment

plural of busy

busyness; making oneself busy with something

Business aside from the main business. / Something secondary or subordinate.

Engaged in business activity / (idiomatic) Ready to proceed in a desired activity.

Third-person singular simple present indicative form of busy

present participle of busy

Of, to, pertaining to or utilized for purposes of conducting trade, commerce, governance, advocacy or other professional purposes. / Professional, businesslike, having concern for good business practice.