We use stomach to mean the front part of the body below the chest. It is where the stomach organ is, but stomach can mean this whole area.
He has a big stomach after eating.
She pressed her stomach to feel better.
This meaning is not about the body. It means how much a person can accept or stand something hard, like bad things or problems.
I can't stomach spicy food.
She has no stomach for danger.
Used as a verb, stomach means to accept or bear something unpleasant. People say they cannot stomach things they do not like or find hard to handle.
I can't stomach this noise.
She stomachs bad comments easily.
Here, stomach means bravery or courage. People use it to say someone has the nerve or boldness to do something difficult or frightening.
He had the stomach to fight.
You need stomach for this job.
In animals, stomach can mean special parts of their body where food is kept and broken down. Some animals have different stomach parts than humans.
The cow's stomach has four parts.
Birds have a stomach called a gizzard.