Is “Hardens” a Scrabble word?
Yes
HARDENS
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 Hardens
verb
1.To become hard (tough, resistant to pressure).
2.To make something hard or harder (tough, resistant to pressure).
3.To strengthen.
Synonyms: inure