Hatbox
/ˈhætbɑːks/
Definition 1 of 1
Pro Tip 1/3Physical Appearance
A hatbox is typically round or square and often has a carrying handle. 
The round hatbox matched her suitcase, making a stylish travel set.
Pro Tip 2/3Historical Use
In the past, hatboxes were more commonly used due to the popularity of elaborate hats. 
Grandma's attic was full of ancient hatboxes from her youth.
Pro Tip 3/3Modern Relevance
Today, hatboxes are less common but can suggest a sense of fashion or nostalgia. 
He bought a vintage hatbox to store his collection of fedoras.