11 letters · 14 points in Scrabble
noun a person who knows only one language
adjective using or knowing only one language
originEtymology tree Proto-Indo-European *mender. Proto-Hellenic *mónwos Ancient Greek μόνος (mónos) Ancient Greek μονο- (mono-)der. English mono- Latin linguālislbor. English lingual English monolingual From mono- + lingual.
Etymology from Wiktionary, CC BY-SA 3.0