English Reference

Word

attach

Phoneticsat·tach, stress on the second syllable

US/əˈtætʃ/

UK/ɐtˈætʃ/

Definitions

01to fasten or join

B1 · Intermediate

v. to join or fasten one thing to another thing.

v. to fasten, join, or connect one object to another. Transitive — requires a direct object and often takes the preposition 'to'.

“You need to attach the label to the box before you send it.”

“The technician used a specialized adhesive to attach the sensor to the outer casing of the engine.”

Synonyms

Antonyms

02digital files

A2 · Elementary Computing

v. to add a document or photo to an email or message.

v. to include a computer file as an attachment to an electronic communication.

“Don't forget to attach your CV to the job application email.”

“The system will not allow you to send the message if you attempt to attach a file that exceeds twenty megabytes.”

Synonyms

03to attribute importance

B2 · Upper Intermediate Academic

v. to believe that something has a particular quality or importance.

v. to ascribe or attribute a particular quality, value, or importance to something. Often used with 'importance', 'weight', or 'significance'.

“Many people attach great importance to their first impressions of a person.”

“Sociologists often attach significant weight to early childhood environments when analyzing long-term educational outcomes.”

04emotional bond

B2 · Upper Intermediate

v. to become emotionally close to someone or something.

v. to bind by ties of affection, loyalty, or self-interest. Usually appears in the passive voice or as a past participle adjective.

“The children quickly became attached to their new puppy.”

“Having lived in the coastal village for over thirty years, he found himself deeply attached to the local community and its traditions.”

Synonyms

Antonyms

05legal operation

C1 · Advanced Law Technical · Formal

v. to become a legal reality or to start being active in a legal way.

v. to come into legal operation or to take effect as a right or liability. Intransitive in this technical sense.

“The new tax rules will attach to any property sold after January.”

“Liability for the debt does not attach to the new owner unless the contract specifically mentions the previous arrears.”

Usage

The verb is intransitive in this sense and takes the preposition 'to'.

Synonyms

Collocations

Common phrases and expressions where native English speakers use the word “attach” in context.

Verb

01. attach importance to

“People attach great importance to their personal privacy.”

verb + noun + prep

02. attach to

“You need to attach the label to your luggage before checking in.”

verb + prep

03. attach value to

“Different cultures attach different value to traditional customs.”

verb + noun + prep

Noun

04. attach document

“I will attach the document to my next message for your review.”

verb + noun

05. attach file

“Please remember to attach the file before you send the email.”

verb + noun

06. attach photo

“You can attach a photo to your profile to make it more personal.”

verb + noun

07. attach a file to

“Don't forget to attach a file to the application form.”

08. attach significance to

“Historians attach great significance to this specific event.”

09. become attached to

“It is easy to become attached to a pet in a very short time.”

Etymology

From Middle English attachen, from Old French atachier, variant of estachier (“bind”), derived from estache (“stick”), from Frankish stakkā, stakō (“stick”), from Proto-Germanic *stakô (“pole, bar, stick, stake”). Doublet of attack. More at stake, stack. Displaced native Old English þīedan.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

VERB

attach(B1)

Idioms

Domain

Law

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · IntermediateOxford
Updated

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English Reference