多義語 is read as たぎご (tagigo) and means polyseme.
たぎご
tagigo
たおんせつご
polysyllabic word
たこくかんしゅぎ
multilateralism
たげんごたいおう
multilingual support
たぶんかしゅぎ
multiculturalism
たぎせい
ambiguity (of a word)
たぎてき
ambiguous
たぎ
various meanings
たようしきしゅぎ
polystylism
たようしゅぎ
どうぎご
synonym
でーたていぎげんご
Data Definition Language
いんたふぇーすていぎげんご
Interface Definition Language