attach
Americanverb (used with object)
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to fasten or affix; join; connect.
to attach a photograph to an application with a staple.
- Antonyms:
- detach
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to join in action or function; make part of.
to attach oneself to a group.
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Military. to place on temporary duty with or in assistance to a military unit.
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to include as a quality or condition of something.
One proviso is attached to this legacy.
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to assign or attribute.
to attach significance to a gesture.
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to bind by ties of affection or regard.
You always attach yourself to people who end up hurting you.
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Law. to take (persons or property) by legal authority.
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Obsolete. to lay hold of; seize.
verb (used without object)
verb
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to join, fasten, or connect
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(reflexive or passive) to become associated with or join, as in a business or other venture
he attached himself to the expedition
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to be inherent (in) or connected (with)
responsibility attaches to the job
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to attribute or ascribe
to attach importance to an event
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to include or append, esp as a condition
a proviso is attached to the contract
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(usually passive) military to place on temporary duty with another unit
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(usually passive) to put (a member of an organization) to work in a different unit or agency, either with an expectation of reverting to, or while retaining some part of, the original working arrangement
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to appoint officially
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law to arrest or take (a person, property, etc) with lawful authority
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obsolete to seize
Other Word Forms
Etymology
Origin of attach
First recorded in 1300–50; Middle English atachen, from Anglo-French atacher “to seize,” Old French atachier “to fasten,” alteration of estachier “to fasten with or to a stake,” from estach(e), from Frankish stakka “stake”; cf. stake 1
Explanation
Use the verb attach when you need to join things together, like a stamp that you attach to a letter. When you attach something, you join it or tie it to something else. The word can be used to show physically joining things, like a printer that you attach to your computer, or to show a strong personal connection. For example, you can attach yourself to a political cause or to a group of friends.
Vocabulary lists containing attach
"Hitching a Ride"
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"The Tragedy of Romeo and Juliet," Vocabulary from Act 5
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"Growing Together" and "When I Grow Up"
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
How they work: Attach magnetically on ship hulls.
From The Wall Street Journal • Mar. 12, 2026
Attach the side pieces followed by the bottom piece, and repeat this process for the remaining boxes.
From Seattle Times • May 12, 2023
Attach the word "misleading" to these three words and we get to the crux of all this.
From BBC • Mar. 20, 2023
Your best bet: Attach a label to the outside and place a business card or second luggage tag on the inside of your bag — for safety.
From Washington Post • Jan. 25, 2023
“Or what? Attach towlines to it and pull? All I know is it won’t be leaving the way it came. Not with Skathis dead.”
From "Strange the Dreamer" by Laini Taylor
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
