Past tense of pop; burst open, appeared suddenly, or made a short sharp sound.
From Middle English poppen, imitative of the sound made by a small explosion or sudden release of pressure. The word has been in English since the 14th century, originally describing sounds and later extending to sudden movements and appearances.
The versatility of 'pop' in English is remarkable - we can pop balloons, pop the question, pop pills, or pop over to visit someone. This semantic expansion from a simple sound word shows how onomatopoeia can evolve into rich metaphorical language.
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