commish /kəˈmɪʃ/noun 2verb 1forms 3 noun2 •(informal) A commissioner.Library commish Mary Dempsey presides over the talk, and there's an accompanying video, Staking Our Claim in Cyberspace. — 1994 •(informal) A commission.Plus, I receive a little commish, so thank you. verb1 •(informal) To commission (an artist or an artwork). formscommished · commishing · commishes