expiration date
US /ˌek.spəˈreɪ.ʃən ˌdeɪt/
UK /ˌek.spəˈreɪ.ʃən ˌdeɪt/
1.
the date after which a product, especially food or medicine, should not be used because it may no longer be safe or effective
:
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Always check the expiration date on perishable goods.
•
The medicine passed its expiration date last month.
2.
the date on which an agreement, contract, or official document ceases to be valid
:
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The lease agreement has an expiration date of December 31st.
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Make sure to renew your passport before its expiration date.