Doors lock vs Fasten

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

Doors lock

Top 2,000 (common)

Fasten

Top 3,000 (common)B1verb
Most common: Doors lock
 Doors lockFasten
Pronunciation🇬🇧 //dɔːrz lɒk//🇺🇸 //dɔrz lɑk//🇬🇧 /["/ˈfɑːsn/","/ˈfɑːsnz/","/ˈfɑːsnd/","/ˈfɑːsnɪŋ/"]/🇺🇸 /["/ˈfæsn/","/ˈfæsnz/","/ˈfæsnd/","/ˈfæsnɪŋ/"]/
MeaningThe way to keep a door closed and secure.To make something secure or tight.
ExampleWhen you leave, make sure to lock the doors.Please fasten your seatbelt before the flight.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 3,000 (common)
CEFR level-B1
Part of speechverb
Collocationslock the doors, lock all doors, doors lock securely, lock herself inside, doors lock automaticallyfirmly, properly, securely, to, firmly, properly, securely, to, firmly, properly, securely, to, firmly, properly, securely, to
Antonyms-loosen, unfasten
Common mistakesConfused with 'lock doors' as a verb phrase., Using 'lock' without a subject or object., Misinterpreting as an idiom when used figuratively.Confusing 'fasten' with 'loosen'., Using 'fasten' without an object, e.g., saying 'I need to fasten.' instead of 'I need to fasten my seatbelt.', Mixing up 'fasten' with other similar verbs like 'attach' or 'secure'.
Usage notesUsed in both spoken and written English. Generally neutral; can apply to a physical action or a situation. Avoid in overly formal contexts.Use 'fasten' when you want to describe securing something, like a seatbelt or a button. It's appropriate in most contexts.

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Doors lock

Frequently asked questions: Doors lock vs Fasten

What's the difference between Doors lock and Fasten?

Doors lock: The way to keep a door closed and secure. Fasten: To make something secure or tight.

Which is more common: Doors lock and Fasten?

Doors lock is the most common in everyday English.

Can you show an example of each?

Doors lock: When you leave, make sure to lock the doors. Fasten: Please fasten your seatbelt before the flight.

Can I use Doors lock and Fasten interchangeably?

Not always. Doors lock and Fasten 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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