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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
PIE word *upó From sub- (prefix meaning ‘beneath, under’) + glacial (“of or relating to glaciers; cold and icy; (figurative) very slow”).
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tap / space
Classic usage
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Verbault — Brown corpus levels, WordNet definitions, Gutenberg corpus.
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