Is “Holdout” a Scrabble word?
Yes
HOLDOUT
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 Holdout
noun
1.One who refuses to give consent to an agreement in the hope of an improved offer; one who holds out; one who clings to a cause that has been mostly abandoned.
2.A device for cheating at card games by covertly holding a card out of play until it is wanted.