Is “Sharpen” a Scrabble word?
Yes
SHARPEN
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 Sharpen
verb
1.(sometimes figurative) To make sharp.
“to sharpen a pencil or a knife or a musical note”
2.To become sharp.
Synonyms: hone, whet