Brain
noun
The kanji and the word are exactly the same. That means they share meanings as well.
The reading is the same as what you learned with the kanji. Don't have to use your brain for that.
CTでもMRIでも、脳には問題はありませんでした。
Neither CT nor MRI showed any brain problems.
ヒルには脳が32個もあるって知ってた？
Did you know that a leech has thirty-two brains?
ベーコンはちゃんとカリカリになるまで焼かないと！生焼けで食べた人の脳からサナダムシが発見されたこともあるんだよ！
You've got to make sure the bacon gets nice and crispy! There have been cases where tapeworms were found in the brains of people who ate it undercooked!