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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English souder, soudere, soudur (noun), from Old French soldure, soudeure (noun), from Old French souder, solder (“to solder”, verb) (> Middle English souden (“to solder”)), from Latin solidāre (“make solid”).
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tap / space
Classic usage
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