Is “Guise” a Scrabble word?
Yes
GUISE
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 Guise
/ˈɡaɪz/
noun
1.Customary way of speaking or acting; fashion, manner, practice (often used formerly in such phrases as "at his own guise"; that is, in his own fashion, to suit himself.)
2.External appearance in manner or dress; appropriate indication or expression; garb; shape.
3.Misleading appearance; cover, cloak.
“Under the guise of patriotism”
verb
1.To dress.
2.To act as a guiser; to go dressed up in a parade etc.