tap / space
Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English revolven (“to change direction”), borrowed from Old French revolver (“to reflect upon”), from Latin revolvere (“turn over, roll back, reflect upon”), from re- (“back”) + volvō (“roll”); see voluble, volve.
go around, rotate
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tap / space
Classic usage
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