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Added 9 October 2026

expiration

/ˌɛk.spəˈɹeɪ̯.ʃən/ noun

Latin root: expīrātiōnem Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about expiration at Wordnik → Where our words come from →

A coming to an end of a contract period.
the expiry of his driver's license
Euphemistic expressions for death.
thousands mourned his passing
The act of expelling air from the lungs.

Origin

From Middle English expiracioun, exspiracioun (“vapor, breath”), from Latin expīrātiōnem, exspīrātiōnem, accusative singular of expīrātiō, exspīrātiō. By surface analysis, expire + -ation.

From Wiktionary, via Kaikki.org (CC BY-SA)

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