(v): form or compose
(v): assume a posture as for artistic purposes
(v): to show, make visible or apparent
(v): pretend to be someone you are not; sometimes with fraudulent intentions
(v): cause someone to believe an untruth
(v): behave affectedly or unnaturally in order to impress others
(v): behave in a certain manner
(v): put into a certain place or abstract location
(v): cause to move or shift into a new position or place, both in a concrete and in an abstract sense
(v): be a mystery or bewildering to
(v): be confusing or perplexing to; cause to be unable to think clearly
(n): affected manners intended to impress others
(n): the quality of being false or artificial (as to impress others)
(n): a posture assumed by models for photographic or artistic purposes
(n): the arrangement of the body and its limbs
(n): a deliberate pretense or exaggerated display
(n): the act of giving a false appearance
1840 THACKERAY Shabby-genteel Story vi. 237 He..‘posed’ before her as a hero of the most sublime kind.