Is “Firming” a Scrabble word?
Yes
FIRMING
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 Firming
verb
1.To make firm or strong; fix securely.
2.To make compact or resistant to pressure; solidify.
3.To become firm; stabilise.
adjective
1.Of beauty products, intended to make the skin firmer.
“firming gel”