pos·er I. \ˈpōzə(r)\noun (-s) Etymology: short for earlier apposer, from obsolete appose + -er 1.archaic: a person who questions; specifically: examiner 2.: a puzzling or baffling question or problem : puzzle < sets some posers for the literary critics to answer — Times Literary Supplement > II. noun (-s) Etymology:pose (I) + -er : a person who poses or attitudinizes