noun
a person who is fluent in six or more languages
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The conference featured a panel discussion with a renowned hyperpolyglot who could speak over 20 languages fluently.
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My friend is such a hyperpolyglot, she can easily switch between different languages in a single conversation.
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That guy is a total language nerd, a real hyperpolyglot who can pick up new languages in no time.
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In the world of coding, he is considered a hyperpolyglot for his ability to master multiple programming languages effortlessly.