Attachment vs File vs Link

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

Attachment

Top 1,000 (very common)B2noun

File

Top 1,000 (very common)B1noun

Link

Top 1,000 (very common)A2noun
 AttachmentFileLink
Pronunciation🇬🇧 /["/əˈtætʃmənt/"]/🇺🇸 /["/əˈtætʃmənt/"]/🇬🇧 /["/faɪl/"]/🇺🇸 /["/faɪl/"]/🇬🇧 /["/lɪŋk/"]/🇺🇸 /["/lɪŋk/"]/
MeaningSomething that is connected or added to something else.A collection of information or documents stored together.A connection between things.
ExampleNo attachment was included.Please upload the file to the system.Please click on the link to visit the website.
RegisterNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelB2B1A2
Part of speechnounnounnoun
Collocationsemail, unsolicited, infected, include, send, open, close, deep, passionate, feel, have, develop, attachment tobulging, bulky, thick, box, stack, have, keep, maintain, contain something, cabinet, drawer, folder, in a/​the file, on file, file on, large, computer, digital, directory, list, set, create, download, upload, contain something, name, format, size, in a/​the file, bulging, bulky, thick, box, stack, have, keep, maintain, contain something, cabinet, drawer, folder, in a/​the file, on file, file onclose, tight, inextricable, have, build, create, connect something, exist, road, link across, link between, link in, close, tight, inextricable, have, build, create, connect something, exist, road, link across, link between, link in, audio, video, radio, have, establish, lose, via a/​the link, link to, link via, embedded, hypertext, Internet, have, add, build, lead to something, point to something, work, link to
Antonymsdetachment, separationdisorder, chaosdisconnect, detach, divide
Common mistakes'Attachment' incorrectly used as a verb., 'Attachment' confused with 'attachment style' in psychological contexts., Mispronouncing 'attachment' as 'attach-ment' instead of 'at-tach-ment'.Confused about whether 'file' is a noun or a verb., Using 'files' when referring to a single document., Incorrectly spelling as 'fyle' or 'fihl'.Confused with 'link' as a noun and verb, forgetting to use the right form., Using 'link' when a stronger word like 'connect' is needed in formal writing., Overusing 'link' instead of 'connection' in context.
Usage notesUse 'attachment' in a variety of contexts, like emails (an attached file) or emotional connections. Avoid using it in very casual settings where a simpler word would suffice.Used in both physical and digital contexts. In formal contexts, use 'document' or 'record' for specificity. Avoid using 'file' to refer to a single item unless specified.Use 'link' in both formal and informal situations. In academic writing, it often refers to ideas or arguments connected logically. Avoid it in contexts requiring very precise language.

Frequently asked questions: Attachment vs File vs Link

What's the difference between Attachment, File, and Link?

Attachment: Something that is connected or added to something else. File: A collection of information or documents stored together. Link: A connection between things.

Which is more advanced: Attachment, File, and Link?

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

Are Attachment, File, and Link the same CEFR level?

Attachment: B2, File: B1, Link: A2 on the CEFR scale.

What part of speech are Attachment, File, and Link?

Attachment: noun, File: noun, Link: noun.

Can you show an example of each?

Attachment: No attachment was included. File: Please upload the file to the system. Link: Please click on the link to visit the website.

Can I use Attachment, File, and Link interchangeably?

Not always. Attachment, File, and Link 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