expiry
nounUK /ɪkˈspaɪəri/
US /ɪkˈspaɪəri/
The expiry of something is the time when it stops being good to use.
Check the expiry date on the milk before you drink it.
OTHER MEANINGS
2. The ending of a legal agreement or contract.
The expiry of the lease means we must move out next month.
3. The death of a person, used in a formal way.
The will takes effect after the expiry of the testator.
4. The act of breathing out air.
Expiry is the part of breathing where air leaves the lungs.