IPA: /kənˈteɪnərbɔrd/
KK: /kənˈteɪnərbɔrd/
A type of cardboard that is used to create boxes and other containers.
The factory produces containerboard for shipping goods.
Containerboard is formed from "container" (from the Latin root "continere", meaning to hold together) and "board" (from Old English "bord", meaning a flat piece of material). The word "containerboard" refers to a type of board used to create containers that hold items together.
Think of a 'container' that 'holds together' items and a 'board' that is a flat piece of material — that's why containerboard is used for making containers.