To stew is to slowly cook food, which results in a soup-like food called a stew. To stew also means to brood angrily. If you cook something slowly, like beef or vegetables, you stew it. The result of stewing is also called stew, which is usually chunky, like a thick soup.

What is it meant by stewing?

: to boil slowly or with simmering heat. intransitive verb. 1 : to become cooked by stewing. 2 : to swelter especially from confinement in a hot or stuffy atmosphere. 3 : to be in a state of suppressed agitation, worry, or resentment.

What does it mean to be stewing over something?

to think or worry about something. I've been stewing over the problem for a while.