Add vs Attach vs Join

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

Add

High-frequency chunkA1verb

Attach

Top 1,000 (very common)B1verb

Join

Top 1,000 (very common)A1verb
 AddAttachJoin
Pronunciation🇬🇧 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇺🇸 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇬🇧 /["/əˈtætʃ/","/əˈtætʃɪz/","/əˈtætʃt/","/əˈtætʃɪŋ/"]/🇺🇸 /["/əˈtætʃ/","/əˈtætʃɪz/","/əˈtætʃt/","/əˈtætʃɪŋ/"]/🇬🇧 /["/dʒɔɪn/","/dʒɔɪnz/","/dʒɔɪnd/","/ˈdʒɔɪnɪŋ/"]/🇺🇸 /["/dʒɔɪn/","/dʒɔɪnz/","/dʒɔɪnd/","/ˈdʒɔɪnɪŋ/"]/
Meaningto put together or to include moreto connect or fasten something to another thingto come together with others
ExamplePlease add your name to the list.Please attach the document to your email before sending it.I decided to join a yoga class to improve my flexibility.
RegisterNeutralNeutralNeutral
How commonHigh-frequency chunkTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA1B1A1
Part of speechverbverbverb
Collocationshastily, hurriedly, quickly, hasten tofirmly, securely, loosely, toformally, officially, voluntarily, want to, wish to, flock to, an invitation to join something, together, eagerly, gladly, wish to, invite somebody to, be allowed to, for, in, with, come and join somebody, an invitation to join somebody/​something
Antonymssubtract, remove, deductdetach, removeleave, split, detach
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 'detach' – forgetting to use the right prefix., Using 'attaching' incorrectly in passive constructions., Not following with an object, e.g., 'attach to' instead of 'attach the document to'.'Join' is often confused with 'meet' — they have different meanings., Learners forget to use 'join' with an object, saying 'I join' instead of 'I join the club.', Mixing up 'join' with 'attend' — attending can imply being present without being an active participant.
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.Use 'attach' for both physical and abstract connections, like emails or documents. Less common in very formal writing. Avoid with informal language unless using slang.Use 'join' when indicating participation in an activity or becoming part of a group. It's neutral and can be used in both formal and informal contexts. Avoid using it in overly formal writing.

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Frequently asked questions: Add vs Attach vs Join

What's the difference between Add, Attach, and Join?

Add: to put together or to include more Attach: to connect or fasten something to another thing Join: to come together with others

Which is more advanced: Add, Attach, and Join?

Attach is the highest level, at B1, on the CEFR scale.

Are Add, Attach, and Join the same CEFR level?

Add: A1, Attach: B1, Join: A1 on the CEFR scale.

What part of speech are Add, Attach, and Join?

Add: verb, Attach: verb, Join: verb.

Can you show an example of each?

Add: Please add your name to the list. Attach: Please attach the document to your email before sending it. Join: I decided to join a yoga class to improve my flexibility.

Can I use Add, Attach, and Join interchangeably?

Not always. Add, Attach, and Join 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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