American English

Definition of onus noun from the Oxford Advanced American Dictionary

 

onus

 noun
noun
NAmE//ˈoʊnəs//
 
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.
See the Oxford Advanced Learner's Dictionary entry: onus