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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From butter + cup. Both sense 1 and 2 are from the flowers' association with butter, from their yellow colour. Compare butterflower for a similar derivation; outside of English, compare Dutch boterbloem, German Butterblume.
butterflower, butter-flower, crowfoot, goldcup, kingcup
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tap / space
Classic usage
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