IPA: /ˈpɛpərˌbɒks/
KK: /ˈpɛpərˌbɑks/
A small container with holes in the top used to sprinkle pepper or other spices on food, or a type of old pistol with multiple barrels.
She reached for the pepperbox to add some spice to her meal.
Pepperbox is formed from "pepper" (from Old English *pipor*, meaning the spice derived from the pepper plant) and "box" (from Old English *box*, meaning a container). The word refers to a container used for holding and dispensing pepper, typically in a powdered form.
Think of a 'container' ('box') that holds 'pepper' — that's why a pepperbox is a box for pepper.
No commonly confused words.