Is “Synonym” a Scrabble word?
Yes
SYNONYM
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 Synonym
/ˈsɪnənɪm/
noun
1.(strictly) A word whose meaning is the same as that of another word.
2.A word or phrase with a meaning that is the same as, or very similar to, another word or phrase.
““Happy” is a synonym of “glad”.”
3.Any of the formal names for a taxon, including the valid name (i.e. the senior synonym).
Synonyms: equivalent, poecilonym, metonym