on expiration

USAGE SUMMARY

The phrase "on expiration" is correct and usable in written English. You can use it when referring to the moment something becomes invalid or ceases to be effective. Example: "The contract will terminate on expiration." Alternative expressions include "upon expiration" and "at expiration."

✓ Grammatically correct

Science

News & Media

Formal & Business

Encyclopedias

Wiki

Human-verified examples from authoritative sources

Exact Expressions

41 human-written examples

This time around, Mr. Obama has vowed that he will not extend the tax cuts for upper-income Americans, and no matter who wins the presidential election in November, Mr. Obama will be in the White House on Expiration Day.

The New York Times

Expiratory – air leak only present on expiration.

Insights into Imaging

The size of the IVC on expiration was recorded, and the IVC collapsibility index was calculated as (IVC size on expiration − IVC size on inspiration)/IVC size on expiration.

Critical Ultrasound Journal

Air-trapping on expiration is another key finding that usually accompanies sarcoidosis [7, 60] (Fig. 34).

Insights into Imaging

c Axial inspiratory CT imaging demonstrating air trapping on expiration d.

Insights into Imaging

It typically happens on inspiration but may also occur on expiration.

Maxillofacial Plastic and Reconstructive Surgery

Human-verified similar examples from authoritative sources

Similar Expressions

18 human-written examples

During ordinary breathing, muscular contraction occurs only on inspiration, expiration being accomplished "passively" by elastic recoil of the lung.

Encyclopedia Britannica

It's another of Mr. Toback's quick-talking autobiographies that, like the best pop, have a clock running on their expiration dates.

The New York Times

The union need not have insisted all these weeks for a new settlement on the expiration date of its old contract.

The New York Times

If XYZ is priced at $120 on the expiration date, your payout is still $10.

Forbes

On the expiration day, all an option is worth is its intrinsic value.

Forbes

Expert writing Tips

Best practice

In financial or legal writing, ensure you distinguish between the state of being expired and the event itself; "on expiration" usually refers to the event.

Common error

Writers sometimes mistakenly use "on expiration" when they actually mean 'during exhalation' in a non-medical context. While technically correct in physiology, in general writing, it is clearer to use 'while exhaling' to avoid confusion with the deadline-related meaning of expiration.

Linguistic Context

The phrase "on expiration" functions primarily as a prepositional phrase acting as an adverbial of time or state. In the examples provided by Ludwig, it often modifies a verb to indicate when a measurement is taken or when a legal right ceases to exist.

Expression frequency: Common

Frequent in

Science

63%

News & Media

23%

Wiki

7%

Less common in

Formal & Business

5%

Encyclopedias

2%

Social Media

0%

Ludwig's WRAP-UP

The phrase "on expiration" is a highly versatile and correct expression used in two distinct high-stakes domains: medicine and finance. According to Ludwig AI, its most frequent application is in scientific literature to describe physiological changes that occur during the exhalation of breath. Simultaneously, it serves as a critical term in financial news and legal documents to denote the moment a contract or stock option loses its validity. Because it is used by authoritative sources like The New York Times and Nature, it is considered a standard formal phrase. When using it, writers should ensure the context clearly dictates whether they are referring to a biological process or a chronological deadline.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

upon expiration

Adds a more formal tone, often used in legal and contractual documents.

at expiration

Commonly used in financial contexts specifically referring to the exact time an option or contract ends.

on the expiration date

Provides more specificity by identifying the exact date of the event.

at the end of the term

Focuses on the duration of a contract or agreement rather than the moment of lapse.

when the term ends

Uses a clausal structure for a slightly less formal tone.

once it expires

Emphasizes the chronological sequence of events following the expiration.

at maturity

A specific financial term often interchangeable with expiration for bonds and investments.

post-expiration

An adjectival or adverbial form used to describe conditions after the end point.

following expiration

Describes the state or actions that occur immediately after the expiration point.

at the point of expiry

Uses the British English noun variant and emphasizes the specific moment.

FAQs

How to use "on expiration" in a sentence?

You can use it to describe an event occurring at a deadline or a physiological state, for example: "The options contract will settle "on expiration"" or "The patient's lungs showed collapse "on expiration"."

What can I say instead of "on expiration"?

You can use alternatives like ""upon expiration"", "at expiration", or "when it expires" depending on the context.

Which is correct, "on expiration" or "at expiration"?

Both are grammatically correct. "on expiration" is more frequent in medical descriptions of breathing, while "at expiration" is more common in financial trading contexts.

What is the difference between "on expiration" and "on the expiration date"?

"on expiration" refers to the event or state of ending, whereas "on the expiration date" specifically points to the calendar day the event occurs.