Commission  —n. 1 a authority to perform a task etc. B person(s) entrusted with such authority. C task etc. Given to such person(s). 2 order for something to be produced specially. 3 a warrant conferring the rank of officer in the armed forces. B rank so conferred. 4 pay or percentage paid to an agent. 5 act of committing (a crime etc.). —v. 1 empower by commission.