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

I had this attaché case that my father had given me.

From New York Times • Oct. 28, 2022

In his hand was a black attaché case.

From Salon • Sep. 7, 2020

Actually, maybe it was more of an attaché case?

From Slate • Aug. 20, 2020

He rose to his feet, clutching the little attaché case which he invariably carried with him as a kind of emblem of office.

From The Yellow Streak by Williams, Valentine