Adhere vs Attach

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

 AdhereAttach
MeaningTo stick to something or follow it closely.to connect or fasten something to another thing
Registerformal-
CEFR levelC1B1
Part of speechverbverb
Usage notesUsed in formal contexts, often in legal or technical language. It's appropriate when discussing rules, guidelines, or sticky substances, but less common in casual conversation.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.

Frequently asked questions: Adhere vs Attach

What's the difference between "Adhere" and "Attach"?

"Adhere" means: To stick to something or follow it closely. "Attach" means: to connect or fasten something to another thing

When should I use "Adhere" and "Attach"?

"Adhere" is formal.

Are "Adhere" and "Attach" the same CEFR level?

"Adhere" is at C1, "Attach" is at B1 on the CEFR scale.

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