Is “Key” a Scrabble word?
Yes
KEY
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 Key
/kiː/
noun
1.An object designed to open and close a lock.
2.An object designed to fit between two other objects (such as a shaft and a wheel) in a mechanism and maintain their relative orientation.
3.A crucial step or requirement.
“The key to solving this problem is persistence.”
verb
1.To fit (a lock) with a key.
2.To fit (pieces of a mechanical assembly) with a key to maintain the orientation between them.
3.To mark or indicate with a symbol indicating membership in a class.
adjective
1.Indispensable, supremely important.
“He is the key player on his soccer team.”
2.Important, salient.
“She makes several key points.”