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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From New Latin parallelopipedon, alteration of Ancient Greek παραλληλεπίπεδος (parallēlepípedos, “with parallel surfaces”), from παράλληλος (parállēlos, “parallel”) + ἐπίπεδος (epípedos, “plane”).
parallelepiped, parallelopiped, parallelepipedon
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tap / space
Classic usage
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