Is “Posh” a Scrabble word?
Yes
POSH
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 Posh
/pɒʃ/
noun
1.Fragments produced by an impact
2.Slush
adjective
1.Associated with the upper classes.
“She talks with a posh accent.”
2.Stylish, elegant, exclusive (expensive).
“After the performance they went out to a very posh restaurant.”
3.(usually offensive) Snobbish, materialistic, prejudiced, under the illusion that one is better than everyone else.
“We have a right posh git moving in next door”
interjection
1.An exclamation expressing derision.
“1889: "The czar! Posh! I slap my fingers--I snap my fingers at him." — Rudyard Kipling, The Man Who Was”