posing (Noun) — (photography) the act of assuming a certain position (as for a photograph or portrait). ex. "he wanted his portrait painted but couldn't spare time for the posing"
posing (Verb) — (of a question, problem, etc) ask, set or introduce. ex. "This poses an interesting question"
posing (Verb) — (art) assume a posture as for artistic purposes. ex. "We don't know the woman who posed for Leonardo so often"
posing (Verb) — Pretend to be someone you are not; sometimes with fraudulent intentions. ex. "She posed as the Czar's daughter"
posing (Verb) — Behave affectedly or unnaturally in order to impress others. ex. "Don't pay any attention to him--he is always posing to impress his peers!"
posing (Verb) — Cause to have a certain (possibly abstract) location. ex. "pose your things here"
posing (Verb) — Be confusing or perplexing to; cause to be unable to think clearly.