Lock it vs Shut

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

Lock it

Top 2,000 (common)

Shut

Top 2,000 (common)A2verb
 Lock itShut
Pronunciation🇬🇧 //lɒk ɪt//🇺🇸 //lɑk ɪt//🇬🇧 /["/ʃʌt/","/ʃʌts/","/ˈʃʌtɪŋ/"]/🇺🇸 /["/ʃʌt/","/ʃʌts/","/ˈʃʌtɪŋ/"]/
MeaningTo secure something by closing it.To close something, like a door or a box.
ExampleMake sure to lock it before you leave the house.Please shut the door quietly when you leave.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR level-A2
Part of speechverb
Collocationslock it up, lock it down, lock it securelyshut the door, shut your mouth, shut down, shut the window, shut it
Antonyms-open
Common mistakesConfuse with 'unlock it', which means to open something., Omitting the object, e.g., saying 'lock' without specifying what is locked.Confusing 'shut' with 'close', as they can have different contexts., Using 'shut' with non-physical objects incorrectly (e.g., 'shut the idea')., Incorrectly using 'shut' in passive constructions.
Usage notesUse 'lock it' when referring to securing doors, cabinets, or devices. Suitable for most contexts. Avoid slang situations.Commonly used in everyday conversation for closing doors or windows. It's less formal and would not be appropriate in formal writing. 'Shut' can also imply stopping an action.

See it in real clips

Lock it
Shut

Frequently asked questions: Lock it vs Shut

What's the difference between Lock it and Shut?

Lock it: To secure something by closing it. Shut: To close something, like a door or a box.

Can you show an example of each?

Lock it: Make sure to lock it before you leave the house. Shut: Please shut the door quietly when you leave.

Can I use Lock it and Shut interchangeably?

Not always. Lock it and Shut 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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