Expire vs Finish

When to use each in English, with meaning, register, and examples.

Expire

Top 2,000 (common)C1verb

Finish

Top 1,000 (very common)A1verb
Most common: Finish
 ExpireFinish
Pronunciation🇬🇧 /["/ɪkˈspaɪə(r)/","/ɪkˈspaɪəz/","/ɪkˈspaɪəd/","/ɪkˈspaɪərɪŋ/"]/🇺🇸 /["/ɪkˈspaɪər/","/ɪkˈspaɪərz/","/ɪkˈspaɪərd/","/ɪkˈspaɪərɪŋ/"]/🇬🇧 /["/ˈfɪnɪʃ/","/ˈfɪnɪʃɪz/","/ˈfɪnɪʃt/","/ˈfɪnɪʃɪŋ/"]/🇺🇸 /["/ˈfɪnɪʃ/","/ˈfɪnɪʃɪz/","/ˈfɪnɪʃt/","/ˈfɪnɪʃɪŋ/"]/
Meaningto end or no longer be validTo complete something.
ExampleWhen does your driving licence expire?I need to finish my homework before dinner.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelC1A1
Part of speechverbverb
Collocationsbe due to, be due toalmost, nearly, barely, let somebody, by, with, almost, nearly, barely, let somebody, by, with
Antonymscontinue, renewstart, begin, initiate
Common mistakesUsing 'expire' with non-time related objects., Confusing 'expire' with 'inspire'., Incorrectly using 'expired' as a noun.Confused with 'complete'—'finish' is more informal., Incorrect verb form—using 'finishing' instead of 'finish' in simple present., Omitting the object—saying 'I will finish.' instead of 'I will finish the project.'
Usage notesUse 'expire' when referring to licenses, subscriptions, or food. Not appropriate for informal contexts or slang.Use 'finish' in contexts where something needs to be completed. It’s appropriate for both spoken and written English but might sound too casual in formal reports.

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Finish

Frequently asked questions: Expire vs Finish

What's the difference between Expire and Finish?

Expire: to end or no longer be valid Finish: To complete something.

Which is more common: Expire and Finish?

Finish is the most common in everyday English.

Which is more advanced: Expire and Finish?

Expire is the highest level, at C1, on the CEFR scale.

Are Expire and Finish the same CEFR level?

Expire: C1, Finish: A1 on the CEFR scale.

What part of speech are Expire and Finish?

Expire: verb, Finish: verb.

Can you show an example of each?

Expire: When does your driving licence expire? Finish: I need to finish my homework before dinner.

Can I use Expire and Finish interchangeably?

Not always. Expire and Finish are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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