From Longman Dictionary of Contemporary Englishattaché caseatˈtaché ˌcase / $ ˌ..ˈ. ˌ./ noun [countable] Da thin case used for carrying business documents
Examples from the Corpus
attaché case• Carrier bag and coat lay on the kitchen table beside the attaché case.• Collins laid the attaché case on the low table, consulted the slip of paper and tumbled the rollers.• Other detectives were going through every item in the attaché case and overnight bag.• Study the attaché case and its contents.• The civilian went up the ladder and retrieved the attaché case.• The device in the attaché case would be activated by remote control from inside the limousine.• Vi slipped the envelope into the attaché case packed ready for the shelter.• Well, he said, I found this attaché case, see. 