expiration date
Medium-HighFormal/Neutral
Definition
Meaning
The final date after which a product (especially food or medicine) should not be used, or a document/agreement is no longer valid.
The specific point in time when something officially ceases to be effective, usable, or enforceable, often predetermined and marked on an item or contract.
Linguistics
Semantic Notes
Primarily refers to a predetermined, fixed endpoint. Often implies a safety, legal, or functional boundary. Can be used metaphorically (e.g., for relationships, trends).
Dialectal Variation
British vs American Usage
Differences
In British English, 'expiry date' is more common in everyday contexts (e.g., on food). In American English, 'expiration date' is dominant, though 'expiry date' is understood.
Connotations
Both terms are neutral and technical. 'Expiration date' can sound slightly more formal or official in all varieties.
Frequency
'Expiration date' is significantly more frequent in AmE. 'Expiry date' is the standard term in BrE for consumer products, though 'expiration date' is used in legal/financial contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [NOUN] has an expiration date of [DATE].The [NOUN] is past its expiration date.[VERB] the expiration date on the [NOUN].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “On borrowed time (similar metaphorical sense)”
- “Living on borrowed time”
Usage
Context Usage
Business
The contract's expiration date is December 31st; we must renegotiate before then.
Academic
The study noted that the medication's efficacy declined sharply after the labeled expiration date.
Everyday
I had to throw the milk away because it was two days past the expiration date.
Technical
The SSL certificate's expiration date must be monitored to avoid service interruption.
Examples
By Part of Speech
verb
British English
- The lease is due to expire next quarter.
- My passport expires in June.
American English
- The offer expires at midnight.
- Your license will expire if you don't renew it.
adverb
British English
- Not commonly derived. 'The contract ended, having expired.'
American English
- Not commonly derived. 'The coupon was used, now expired.'
adjective
British English
- We need to check for expired products.
- The expired licence was not accepted.
American English
- Do not take expired medication.
- The system rejected the expired password.
Examples
By CEFR Level
- Look at the expiration date on the yoghurt.
- My bus pass has an expiration date.
- You shouldn't eat anything after its expiration date for safety.
- The discount coupon has an expiration date printed at the bottom.
- The diplomatic visa's expiration date necessitated a complex renewal process.
- Critics argued that the political doctrine had long passed its intellectual expiration date.
Learning
Memory Aids
Mnemonic
Think of a balloon losing air – it EXPIRES. The EXPIRATION DATE is when the air (or usefulness) is completely gone.
Conceptual Metaphor
TIME IS A COMMODITY WITH A LIMITED SHELF LIFE. / VALIDITY IS A CONTAINER THAT EMPTIES.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calques like '*date of expiration*'. Use the fixed noun phrase 'expiration date'.
- Do not confuse with 'manufacture date' (дата изготовления) or 'date of issue' (дата выдачи).
- In Russian, 'срок годности' is the closest concept, but it's a period, not a specific date. English specifies the *date* when that period ends.
Common Mistakes
- Incorrect: 'The food is expired date.' Correct: 'The food is past its expiration date.'
- Incorrect preposition: 'expiration date for milk'. More common: 'expiration date on the milk'.
- Confusing 'best before date' (about quality) with 'expiration date' (about safety).
Practice
Quiz
In which context is 'expiration date' LEAST likely to be used?
FAQ
Frequently Asked Questions
Not exactly. An 'expiration date' (or 'use-by date') is often related to safety—consuming after may be risky. A 'best before date' is about quality—the product may be safe but not at its peak quality after that date.
Yes, but it's metaphorical. E.g., 'Some say that style has an expiration date.' It's informal and suggests something becomes outdated or irrelevant.
BrE overwhelmingly prefers 'expiry date' for consumer goods. AmE almost exclusively uses 'expiration date'. Both are correct and understood in either variety.
'Check' is very common (e.g., 'Check the expiration date'). Also 'pass' (e.g., 'The date has passed'), 'have', 'reach', and 'extend'.