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POS
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World English Dictionary
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poser (2)
pos·er
[
pṓzər
]
(
plural
pos·ers
)
noun
Definition:
challenging problem:
a difficult question or problem
[
Late 16th century. <pose
2
]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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