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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowing from Latin ēbulliēns, present participle of ēbulliō (“to boil”), from bulliō (“to bubble up”) (English boil). Compare bubbling, bubbly, and perky, which use a similar metaphor.
exuberant, high-spirited
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Classic usage
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