Definition of onus noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈəʊnəs//
; NAmE NAmE//ˈoʊnəs//
(also the onus) [singular] (formal)
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the responsibility for something The onus is on employers to follow health and safety laws. The onus of proof lies with the prosecution. The report puts the onus of children’s early education firmly on the parents. Word Originmid 17th cent.: from Latin, literally ‘load or burden’.
See the Oxford Advanced American Dictionary entry: onus