expiration

UK/ˌɛk.spəˈɹeɪ̯.ʃən/US/ˌɛk.spɚˈeɪ̯.ʃən/

nounB2Common in everyday speech and writing · #8,221 of 15,258leans written

Expiration is the coming to an end of a period of validity. The expiration of the lease, expiration date, before expiration.

It is the formal noun and belongs to contracts, licences and passports. The older sense is breathing out, which is where the word comes from, and where expire got its sense of dying.

Definitions of expiration

1nounexpirationThe coming to an end of a period of validity.B2
“The card was refused a week after its expiration.”

expiration is an ending.

Where it comes from

Latin expiratio comes from exspirare, to breathe out, from ex plus spirare, to breathe.

Latin
expīrātiōnem
Middle English
expiracioun
English, today
expiration

Built from

exspiracioun · Middle English — vapor, breath

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

Etymology from Wiktionary, CC BY-SA

Practise this word

expiration in the wild

A straddle involves buying a call and put with same strike price and expiration date in the same notional amounts.
Straddle
If the stock price is close to the strike price at expiration of the options, the straddle leads to a loss.
Straddle
The concept of expiration date is related but legally distinct in some jurisdictions.
Shelf life
In finance, the expiration date of an option contract is the last date on which the holder of the option may exercise it according to its terms.
Expiration (options)
In other words, an option position may result in a large, undesired risky position in the underlier immediately after expiration, regardless of the actions of the writer.
Pin risk

From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.

Related words

expire

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