Bake, Toast and Roast = 烤 (Kao) in Chinese

Chinese has only one word for bake, toast and roast = 烤 (Kao) in Mandarin. What is the difference?

Baking Bread

Roast Chicken

Bread: untoasted (= a slice of white bread) and toasted (= a slice of toast)

A Toaster

VERB	Collocates	Meaning
Bake	~ bread, ~ cake, ~ a potato	To cook sth in an oven
Roast	~ chicken, ~ beef	To cook sth in an oven
Toast	~ bread	To make soft bread crisp and brown

Notice that toast ≠ 土司

Toast (NOUN) = any bread that was put near a fire to make it crisp and brown

土司 (Tuusy) = (usually) sliced white bread

一條土司 = A loaf of sliced white bread