cas

noun
UK /kæs/
US /kæs/

A cas is a short way to say a casual friend or a casual thing.

My cas and I played games after school.


OTHER MEANINGS

2. Cas can be a short form of the name Casper.

Cas waved hello from across the street.

3. In computing, CAS means compare-and-swap, a way to update data safely.

The program used CAS to change the value without errors.

4. In chemistry, CAS refers to a numbered list that identifies chemicals.

The scientist looked up the CAS number for the compound.