Is “Yin” a Scrabble word?
Yes
YIN
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 Yin
/jɪn/
noun
1.A principle in Chinese and related East Asian philosophies associated with dark, cool, female, etc. elements of the natural world.