Attach vs Bind

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

Attach

Top 1,000 (very common)B1verb

Bind

Top 2,000 (common)C1verb
Most common: Attach
 AttachBind
Pronunciation🇬🇧 /["/əˈtætʃ/","/əˈtætʃɪz/","/əˈtætʃt/","/əˈtætʃɪŋ/"]/🇺🇸 /["/əˈtætʃ/","/əˈtætʃɪz/","/əˈtætʃt/","/əˈtætʃɪŋ/"]/🇬🇧 /["/baɪnd/","/baɪndz/","/baʊnd/","/ˈbaɪndɪŋ/"]/🇺🇸 /["/baɪnd/","/baɪndz/","/baʊnd/","/ˈbaɪndɪŋ/"]/
Meaningto connect or fasten something to another thingto tie or fasten things together
ExamplePlease attach the document to your email before sending it.The agreement will bind both parties to the contract.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1C1
Part of speechverbverb
Collocationsfirmly, securely, loosely, totightly, loosely, together, to, with, bind and gag somebody, bind somebody hand and foot, contractually, legally, morally, be beautifully bound, be handsomely bound, be richly bound, contractually, legally, morally
Antonymsdetach, removeunbind, loosen, release
Common mistakesConfused 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'.Confusing 'bind' with 'bond' — 'bond' usually implies a relationship., Using 'bind' incorrectly in a figurative sense without clear context., Forget to use the appropriate preposition when indicating what is being bound.
Usage notesUse '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 'bind' in contexts where something is physically tied or metaphorically connected. It's suitable for both formal and informal contexts but can feel technical in legal or academic texts.

Frequently asked questions: Attach vs Bind

What's the difference between Attach and Bind?

Attach: to connect or fasten something to another thing Bind: to tie or fasten things together

Which is more common: Attach and Bind?

Attach is the most common in everyday English.

Are Attach and Bind the same CEFR level?

Attach: B1, Bind: C1 on the CEFR scale.

Can I use Attach and Bind interchangeably?

Not always. Attach and Bind 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.

Related comparisons