| Date: | 1800-1900 |
| Language: | French |
| Origin: | poser; POSE1 |
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pos‧er
[countable] informal
[countable] informal1 British English also po‧seur
someone who pretends to have a quality or social position they do not really have, usually in order to make people notice or admire them :
You meet a lot of posers in this job.

You meet a lot of posers in this job.2 a difficult question :
That's a real poser.
That's a real poser.