IPA: /ˌmʌl.tɪŋˈɡwɪl/
KK: /mʌlˈtɪŋɡwəl/
Relating to or using multiple languages, especially with skill or fluency.
She is multilingual and can speak four different languages fluently.
Multilingual → It is formed from "multi-" (meaning many) and "lingua" (from Latin, meaning tongue or language). The word "multilingual" refers to the ability to use or understand many languages.
Think of 'many' ('multi-') languages ('lingua') to remember that 'multilingual' means someone who can speak multiple languages.