IPA: //baɪˈlɪŋɡwəlɪti//
KK: /baɪˈlɪŋɡwəlɪti/
The ability to speak and understand two languages fluently.
Her bilinguality allows her to communicate easily with people from different countries.
Bilinguality → It is formed from "bi-" (meaning two) and "lingua" (from Latin, meaning tongue or language) and the suffix "-ity" (meaning the state or condition of). The word "bilinguality" refers to the state of being able to speak two languages.
Think of 'bi-' meaning two and 'lingua' meaning language — bilinguality is the state of knowing two languages.