Is “Tack” a Scrabble word?
Yes
TACK
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 Tack
/tak/
noun
1.A small nail with a flat head.
2.A thumbtack.
3.A loose seam used to temporarily fasten pieces of cloth.
Synonyms: coming about