Integrate vs Merge

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

Integrate

Top 2,000 (common)B2verb

Merge

Top 1,000 (very common)C1verb
Most common: Merge
 IntegrateMerge
Pronunciation🇬🇧 /["/ˈɪntɪɡreɪt/","/ˈɪntɪɡreɪts/","/ˈɪntɪɡreɪtɪd/","/ˈɪntɪɡreɪtɪŋ/"]/🇺🇸 /["/ˈɪntɪɡreɪt/","/ˈɪntɪɡreɪts/","/ˈɪntɪɡreɪtɪd/","/ˈɪntɪɡreɪtɪŋ/"]/🇬🇧 /["/mɜːdʒ/","/ˈmɜːdʒɪz/","/mɜːdʒd/","/ˈmɜːdʒɪŋ/"]/🇺🇸 /["/mɜːrdʒ/","/ˈmɜːrdʒɪz/","/mɜːrdʒd/","/ˈmɜːrdʒɪŋ/"]/
MeaningTo combine things into a whole.To combine two or more things into one.
ExampleWe need to integrate new technology into our existing systems.The two companies decided to merge to increase their market share.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2C1
Part of speechverbverb
Collocationsclosely, tightly, well, into, with, highly integrated, poorly integrated, well, completely, fully, into, withmerge data, merge companies, merge cells, merge ideas, merge accounts
Antonymssegregate, isolate, separatesplit, divide
Common mistakesConfused with 'segregate', which means to separate., Using 'integrate' with an incorrect preposition, e.g., 'integrate with' instead of 'into'., Incorrectly using 'integrate' as a noun instead of a verb.Confusing with 'marge', which is not a valid word., Using 'merge' without an object; remember it needs something to merge., Omitting the 's' in present tense for third person (e.g., 'he merge' instead of 'he merges').
Usage notesUse 'integrate' in formal and neutral contexts, particularly in academic or professional settings. It is typically not used in casual conversations.Use when talking about combining ideas, companies, or data. It's appropriate in both spoken and written contexts, such as business or technology.

Frequently asked questions: Integrate vs Merge

What's the difference between Integrate and Merge?

Integrate: To combine things into a whole. Merge: To combine two or more things into one.

Which is more common: Integrate and Merge?

Merge is the most common in everyday English.

Are Integrate and Merge the same CEFR level?

Integrate: B2, Merge: C1 on the CEFR scale.

Can I use Integrate and Merge interchangeably?

Not always. Integrate and Merge 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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