Add vs Combine vs Contribute vs Include

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

Add

High-frequency chunkA1verb

Combine

Top 1,000 (very common)B1verb

Contribute

Top 2,000 (common)B2verb

Include

Top 1,000 (very common)A1verb
 AddCombineContributeInclude
Pronunciation🇬🇧 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇺🇸 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇬🇧 /["/kəmˈbaɪn/","/kəmˈbaɪnz/","/kəmˈbaɪnd/","/kəmˈbaɪnɪŋ/"]/🇺🇸 /["/kəmˈbaɪn/","/kəmˈbaɪnz/","/kəmˈbaɪnd/","/kəmˈbaɪnɪŋ/"]/🇬🇧 /["/kənˈtrɪbjuːt//ˈkɒntrɪbjuːt/","/kənˈtrɪbjuːts//ˈkɒntrɪbjuːts/","/kənˈtrɪbjuːtɪd//ˈkɒntrɪbjuːtɪd/","/kənˈtrɪbjuːtɪŋ//ˈkɒntrɪbjuːtɪŋ/"]/🇺🇸 /["/kənˈtrɪbjuːt/","/kənˈtrɪbjuːts/","/kənˈtrɪbjuːtɪd/","/kənˈtrɪbjuːtɪŋ/"]/🇬🇧 /["/ɪnˈkluːd/","/ɪnˈkluːdz/","/ɪnˈkluːdɪd/","/ɪnˈkluːdɪŋ/"]/🇺🇸 /["/ɪnˈkluːd/","/ɪnˈkluːdz/","/ɪnˈkluːdɪd/","/ɪnˈkluːdɪŋ/"]/
Meaningto put together or to include moreTo join two or more things together.To give something, like money or help, to a cause or project.to have something as part of a group or whole
ExamplePlease add your name to the list.You can combine ingredients to create a delicious meal.Everyone is encouraged to contribute to the community project.You should include your contact information in the application.
RegisterNeutralNeutralNeutralNeutral
How commonHigh-frequency chunkTop 1,000 (very common)Top 2,000 (common)Top 1,000 (very common)
CEFR levelA1B1B2A1
Part of speechverbverbverbverb
Collocationshastily, hurriedly, quickly, hasten tosuccessfully, well, against, withenormously, generously, greatly, be asked to, be encouraged to, to, towards/​toward, have little, a lot, etc. to contribute (to something), greatly, importantly, largely, to, regularly, toinclude in a list, include as part, include among
Antonymssubtract, remove, deductseparate, divide, disjoinwithdraw, take away, depriveexclude, omit, leave out
Common mistakes'Add to' used incorrectly as if it were 'add with', Confusing 'add' with 'add up' which has different meanings, 'Adding' used without an objectConfused with 'combin' which is not a real word., Incorrectly using 'combine' with a subject (e.g., 'I combine an idea') instead of an object., Using 'combined' when 'combine' is needed in a present tense context.Confused with 'attribute' — they have different meanings., Using 'contribute' without an object, which is incorrect., Mixing up 'contribute to' with 'contribute for' — the correct phrase is 'contribute to'.Confused with 'exclude' and use the wrong word., Omitting the object after 'include'., Using 'include' incorrectly in negative sentences.
Usage notesUse 'add' in both casual and formal contexts, but avoid it in very technical or academic writing where more specific terms might be required.Used in both spoken and written English; common in cooking, science, and teamwork contexts. Avoid using in very informal situations where simpler terms like 'mix' may be preferred.Use 'contribute' when you are giving something to a group effort. It's appropriate in most contexts, both formal and informal, especially when discussing teamwork or donations.Use 'include' to specify that something is part of a larger list or group. Avoid using it when talking about things that are not part of that list.

See it in real clips

Add
Combine

Frequently asked questions: Add vs Combine vs Contribute vs Include

What's the difference between Add, Combine, Contribute, and Include?

Add: to put together or to include more Combine: To join two or more things together. Contribute: To give something, like money or help, to a cause or project. Include: to have something as part of a group or whole

Which is more advanced: Add, Combine, Contribute, and Include?

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

Are Add, Combine, Contribute, and Include the same CEFR level?

Add: A1, Combine: B1, Contribute: B2, Include: A1 on the CEFR scale.

What part of speech are Add, Combine, Contribute, and Include?

Add: verb, Combine: verb, Contribute: verb, Include: verb.

Can you show an example of each?

Add: Please add your name to the list. Combine: You can combine ingredients to create a delicious meal. Contribute: Everyone is encouraged to contribute to the community project. Include: You should include your contact information in the application.

Can I use Add, Combine, Contribute, and Include interchangeably?

Not always. Add, Combine, Contribute, and Include 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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