Is “Seifs” a Scrabble word?
Yes
SEIFS
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 Seifs
noun
1.A sand dune that elongates parallel to the prevailing wind.
Synonyms: longitudinal dune