exec noun 2verb 1forms 4 noun2 •(informal) An executive; a person employed at the executive level.An upcoming problem to be thrashed out at a meeting of diskery reps and execs of the American Federation of Radio Artists (AFRA), is the degree of AFRA's jurisdictional claim over singers on records. — 1950 •(informal) An executive officer, i.e. the chief assistant to the commanding officer.“'Okay. Report to the exec's office right after inspection tomorrow, Mister Keith. Best of luck.” — 1951 verb1 •(informal) To execute; to run. formsexeced · execing · execs · execs.