IPA: /ˈstɒkˌpɒt/
KK: /ˈstɑkˌpɑt/
A large pot used for cooking soups or broths, typically with a wide base and tall sides.
She simmered the vegetables in the stockpot to make a delicious soup.
Stockpot → The word is formed from "stock" (from Old English *stoc*, meaning a place or a store) and "pot" (from Old French *pot*, meaning a container for cooking). A stockpot is a large cooking container used for storing or preparing stock or broth.
Think of a 'place' ('stock') where you keep a 'container' ('pot') for cooking — that's what a stockpot is used for.
No commonly confused words.