attaché case

American  

noun

1. a flat, usually rigid, rectangular briefcase for carrying business papers, documents, or the like.

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attaché case British  

noun

1. a small flat rectangular briefcase used for carrying documents, papers, etc

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Etymology

Origin of attaché case

First recorded in 1900–05

Example Sentences

One could not leave the building without a thorough search of anything you were carrying: book, box, bag, magazine, folder, briefcase or attaché case, whatever.

From Washington Post • Jan. 16, 2023

His Panama hat from San Juan — he wears straw hats year round — was attached to his attaché case.

From New York Times • Oct. 10, 2020

In his hand was a black attaché case.

From Salon • Sep. 7, 2020

DadGear’s product description for the backpack reads like Q’s explanation of James Bond’s attaché case, if what Bond needed was an easy-access diaper hammock and ergonomic design.

From Slate • Jul. 26, 2018

One of the other agents had picked it up from my flitterboat and packed it carefully into a small attaché case.

From A Spaceship Named McGuire by Garrett, Randall