Is “Loo” a Scrabble word?
Yes
LOO
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 Loo
/luː/
verb
1.(used with at, upon or infinitive) To urge on with cries of loo or by other shouting or outcry.
interjection
1.A cry to urge on hunting dogs.