Is “Affixes” a Scrabble word?
Yes
AFFIXES
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 Affixes
noun
1.That which is affixed; an appendage.
2.A bound morpheme added to the word’s stem's end.
3.(broadly) A bound morpheme added to a word’s stem; a prefix, suffix etc.
Synonyms: addition, supplement, postfix, suffix
verb
1.To attach.
“to affix a stigma to a person”
2.To subjoin, annex, or add at the close or end; to append to.
“to affix a seal to an instrument”
3.To fix or fasten figuratively; with on or upon.
“eyes affixed upon the ground”
Synonyms: join, put together, unite