Is “Tarns” a Scrabble word?
Yes
TARNS
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 Tarns
/tɑː(ɹ)nz/
noun
1.A small mountain lake, especially in Northern England.
2.(chiefly Montana) One of many small mountain lakes or ponds.