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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Decapitalization of Bethe. Coined by astrophysicist Gerald E. Brown. Named after astrophysicist Hans Bethe, his collaborator on papers where this value frequently occurs.
Hans Bethe, Hans Albrecht Bethe
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tap / space
Classic usage
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Verbault — Brown corpus levels, WordNet definitions, Gutenberg corpus.
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