Upper-Intermediate (B2)
IPA: /ˈoʊ.nəs/
KK: /ˈoʊnəs/
Definition
A difficult responsibility or obligation that someone has to deal with.
Example
The onus is on the manager to ensure that the project is completed on time.
Conversation

I heard you took on that new project at work.

Yeah, it's exciting, but the onus of extra responsibility is a bit overwhelming.

I can imagine! It must be tough balancing everything.

Definitely, but I think it will be worth it in the end.
Synonyms & Antonyms
Synonyms
burden
responsibility
obligation
Root Explanation
Onus originates from Latin 'onus' (meaning burden or load). The word refers to a burden or responsibility that one must carry or bear.
Memory Tip
Think of 'onus' as a 'burden' you have to carry — it helps you remember that it means a responsibility or load.
Visually Confused Words
tonus
conus
bonus
ons
tornus
tonous
somnus
pontus