Is “Tagmeme” a Scrabble word?
Yes
TAGMEME
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 Tagmeme
noun
1.(grammar, tagmemics) The smallest functional element in the grammatical structure of a sentence.