IPA: /ˈkɑːrtfəl/
KK: /ˈkɑrtfəl/
The amount of goods or materials that can be carried in a cart.
We filled the cartful with fresh vegetables from the market.
Cartful → It is formed from "cart" (from Old English *cyrta*, meaning a vehicle or wheeled conveyance) and "-ful" (meaning full of). The word "cartful" means full of carts or the amount that a cart can hold.
Think of a cart that is 'full of' something — that's what 'cartful' means.