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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English twiren (“to peep out, pry about, twinkle, glance, gleam”), cognate with Middle High German zwieren (“to spy”), Bavarian zwiren, zwieren (“to spy, glance”). Perhaps related to Old English twinclian (“to twinkle”). More at twinkle.
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Classic usage
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