Difference between Tub and Vat

Tub

Part of speech: verb

Definition: To pack or store something in a tub. To bathe.

Part of speech: noun

Definition: A broad, open, flat-bottomed vessel used for storing or packing things, or for washing things in. The contents or capacity of such a vessel. A bathtub. A slow-moving craft.

Example sentence: I'm a go-hard type. It's in my DNA. I physically prepare my body as if I'm a trained athlete. After the shows, I sit in an ice tub and do a hot dip, cold dip, and sometimes I sit in a hyperbaric chamber to rejuvenate my energy.

Vat

Part of speech: noun

Definition: A large tub, such as is used for making wine or for tanning.