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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English obligacioun, from Old French obligacion, from Latin obligatio, obligationem, from obligatum (past participle of obligare), from ob- (“to”) + ligare (“to bind”), from Proto-Indo-European *leyǵ- (“to bind”).
duty, responsibility
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Classic usage
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