Is “Poser” a Scrabble word?
Yes
POSER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Poser
noun
1.A particularly difficult question or puzzle.
2.Someone who asks a question or sets a problem.
“Even as a child, she was a habitual poser of difficult questions.”
3.Someone who, or something which, poses; a person who sets their body in a fixed position, such as for photography or painting.