Expiration Dates

verb to come to the end of the validity or duration

adjective no longer valid or in effect

• The contract has expired and is no longer valid.
• I forgot to use the coupon before it expired.
• My gym membership is expired, I need to renew it.
• The opportunity has expired, we missed our chance.

noun the length of time for which an item remains usable, fit for consumption, or saleable

• The shelf life of this medication is two years.
• Don't forget to check the shelf life of the milk before you buy it.
• I can't eat that, it's way past its shelf life.
• The shelf life of a trend in fashion can be very short-lived.