bilingual /baɪˈlɪŋ.ɡwəl/adjective 3noun 2forms 1 adjective3 •Having the ability to speak two languages fluently.He thinks it's chic to have a bilingual wife. — 1980 •Spoken or written in two different languages.All signage in and around the station is bilingual in Welsh and English, while station announcements and passenger information screens provide real-time information. — 2020 •Characterized by the use or presence of two languages. noun2 •A person who is able to use two languages. •An inscription that includes the same text in two languages. formsbilinguals