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Classic usage
Reading level: hard
Estimated CEFR level: B1 — Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English grinnen, from Old English grennian, from Proto-West Germanic *grannjōn, from Proto-Germanic *granjōną. Related to groan. Compare to Middle High German grennen (“to mutter, complain”) and Danish grine (“to show one's teeth, to laugh”)
smile, smiling, grinning
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Classic usage
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