onus

Pronunciation

• (UK) IPA ^(key): /ˈəʊnəs/
• (US) IPA ^(key): /ˈoʊnəs/

Noun

Singular onus

Plural onuses

1. An onus is something that is a person's duty or responsibility.

   The onus is on the landlord to make sure the walls are protected from mildew.

   The onus is on those who disagree with my proposal to explain why.