Modify vs Revise

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

Modify

Top 2,000 (common)B2verb

Revise

Top 1,000 (very common)B1verb
Most common: Revise
 ModifyRevise
Pronunciation🇬🇧 /["/ˈmɒdɪfaɪ/","/ˈmɒdɪfaɪz/","/ˈmɒdɪfaɪd/","/ˈmɒdɪfaɪɪŋ/"]/🇺🇸 /["/ˈmɑːdɪfaɪ/","/ˈmɑːdɪfaɪz/","/ˈmɑːdɪfaɪd/","/ˈmɑːdɪfaɪɪŋ/"]/🇬🇧 //rɪˈvaɪz//🇺🇸 //rɪˈvaɪz//
MeaningChange something to make it better or different.To study or change something to improve it.
ExampleYou can modify the document by adding new sections.I need to revise my notes before the exam.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2B1
Part of speechverbverb
Collocationsconsiderably, drastically, extensively, have to, need to, for, highly modified, in a modified form, modified to fit somethingrevise for an exam, revise a document, revise a proposal, revise your work, revise a plan
Antonymsmaintain, preserve, keepignore, neglect, overlook
Common mistakesConfusing with 'modification', which is the noun form., Using 'modify' without an object, which is incorrect., Overusing 'modify' instead of synonyms like 'change' or 'adjust' in casual speech.Confused with 'review'; 'revise' implies making changes, while 'review' means to look over., Using 'revise' without an object; it should always be 'revise something'., Using 'revise' in contexts that require 'edit'; be sure to consider the difference.
Usage notesUse 'modify' when discussing changes to plans, documents, or objects. It's neutral, so it's appropriate in most contexts, such as academic or business settings.Use 'revise' when talking about reviewing materials or making improvements. It's common in academic contexts but can also apply to work projects. Avoid using it in casual conversations.

Frequently asked questions: Modify vs Revise

What's the difference between Modify and Revise?

Modify: Change something to make it better or different. Revise: To study or change something to improve it.

Which is more common: Modify and Revise?

Revise is the most common in everyday English.

Which is more advanced: Modify and Revise?

Modify is the highest level, at B2, on the CEFR scale.

Are Modify and Revise the same CEFR level?

Modify: B2, Revise: B1 on the CEFR scale.

What part of speech are Modify and Revise?

Modify: verb, Revise: verb.

Can you show an example of each?

Modify: You can modify the document by adding new sections. Revise: I need to revise my notes before the exam.

Can I use Modify and Revise interchangeably?

Not always. Modify and Revise 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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