Stomach
noun
The kanji and the word are exactly the same. That means they share meanings as well. Just keep in mind 胃 is specifically for the internal organ "stomach," not for the general abdominal area "stomach."
い
This has the same reading as the kanji you learned, meaning you know the reading!
ストレスで、胃がキリキリします。
My stomach aches from stress.
人生で初めて胃カメラを飲んだ。
For the first time in my life, I had a gastroscopy.
あの胃が弱い設定のキャラクター、何て名前だっけ？
What was the name of the character with the trait of having a weak stomach?
ケーキとベーコンの食べ過ぎで胃がもたれています。
I ate too much cake and bacon, and they've been heavy on my stomach.