What's the difference?/Change, replace, alter, and adjust: what's the difference?
changereplacealteradjustOctober 05, 2026

Vastny Languages editorial team

Change, replace, alter, and adjust: what's the difference?

Change is broad. Replace means put something else in place of an old item. Alter means modify the existing thing; adjust usually means make a limited change for a better fit or result.

Quick answer

Change is broad. Replace means put something else in place of an old item. Alter means modify the existing thing; adjust usually means make a limited change for a better fit or result.

Quick choice

Which word fits here?

More details

How to choose a word

change

Use change when something becomes different or when you switch to something else.

replace

Use replace when one item takes the place of another: replace a broken part.

alter

Use alter when modifying the existing thing, such as altering a plan or a dress.

adjust

Use adjust for changes that improve fit, position or operation, such as adjusting a chair.

Word by word

Base word

change

Use change when something becomes different or when you switch to something else.

She changed her mind about the trip.

We had to change the schedule after the flight was delayed.

Common phrases
change your mindchange planschange the subjectchange a passwordchange the schedule
Similar word

replace

Use replace when one item takes the place of another: replace a broken part.

Please replace the broken bulb with a new one.

The company replaced the old software with a faster system.

Common phrases
replace a batteryreplace a partreplace the old filereplace an employeereplace A with B
Similar word

alter

Use alter when modifying the existing thing, such as altering a plan or a dress.

She had the dress altered before the wedding.

The lawyer altered the wording of the contract.

Common phrases
alter a dressalter a documentalter the planalter the termsalter the design
Similar word

adjust

Use adjust for changes that improve fit, position or operation, such as adjusting a chair.

Adjust the mirror before you start driving.

We adjusted the meeting time to fit everyone’s schedule.

Common phrases
adjust the volumeadjust the seatadjust the mirroradjust the settingsadjust to a new job

Frequently asked questions

How do I use change in this comparison?

Use change when something becomes different or when you switch to something else.

Are these words always interchangeable?

Change is broad. Replace means put something else in place of an old item. Alter means modify the existing thing; adjust usually means make a limited change for a better fit or result.

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