IPA: /ˈpɒlɪɡlɒtɪzəm/
KK: /ˈpɑlɪˌɡlɑtɪzəm/
The ability to speak or use several languages fluently.
Her polyglotism allows her to communicate with people from different countries.
Polyglotism → It is formed from "poly-" (from Greek "polus", meaning many) and "glotta" (meaning tongue or language) and the suffix "-ism" (indicating a practice or condition). The word describes the condition of knowing or using many languages.
Think of 'many' ('poly-') languages ('glotta') — that's what polyglotism means, the practice of knowing many languages.
No commonly confused words.