District
Ward
noun
The kanji and the word are exactly the same. That means they share meanings as well.
く
The reading is the same as the one you learned with the kanji!
私のおじは、中央区の区役所で働いています。
My uncle works at the ward office of Chuo-ku.
ここはちゅう車きん止区なので、車は止められませんよ。
You cannot park here because this is a no-parking district.
ここ最近、横浜の外国人居留区では、暴力行為がかつてないほど横行している。
Recently, the foreign quarter of Yokohama has suffered from an unprecedented level of violence.