The invalidity of his argument was evident to everyone.

She is invalidating his argument with solid evidence.

There are many invalids in the hospital.

The invalidator refused to accept the claim.

The invalidators were unable to prove their case in court.

The court's decision led to multiple invalidations of the contract.

She invalided her ticket and got a refund.

The government provides financial support for people with disabilities and other invalidities.

Many invalidisms can be managed with proper care and treatment.

She is invaliding her ticket for the concert.