Definition of profess. transitive verb. to receive formally into a religious community following a novitiate by acceptance of the required vows. a to declare or admit openly or freely affirm. b to declare in words or appearances only pretend, claim..Relatively few demonstrated any informed awareness of the raft of policies outlined above and some that professed understanding were in reality confused or .Define profess verb and get synonyms. What is profess verb ? profess verb meaning, pronunciation and more by Macmillan Dictionary..