briefcase
 
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SMART Vocabulary: related words and phrases

Containers for carrying personal possessions
baggage
billfold
bindle
briefcase
bumbag
excess baggage
grip
hand luggage
handbag
hatbox
haversack
pannier
pocketbook
sack
saddlebag
satchel
schoolbag
shopping bag
sling
sponge bag

attaché case | American Dictionary

attaché case
noun[ C ]
us/ˈæˌtæˈʃeɪˌkeɪs, ˈæt̬·ə-/
a hard-sided, rectangular container used esp. for carrying business papers; a type of briefcase