ONUS

[noun] [U] [formal] - the onus a responsibility or duty to do somethingThe onus is on the landlord to ensure that the property is habitable. [+ to infinitive]We are trying to shift the onus for passenger safety onto the government.A defendant is innocent until proven guilty, and the onus of proof rests with the prosecution.The onus lies with the customer to check every detail before signing any contract. [+ to infinitive]