Noon
Daytime
noun
The kanji and the word are exactly the same. That means they share meanings as well.
昼 refers to the middle part of the day when the sun is up. Depending on context, it can mean around noon specifically or more broadly the daytime hours. This can also mean lunch, especially when used with the honorific prefix お, as in お昼.
The reading for this word is the same as the kanji it comes from, so you should be able to read it!
昼休み
lunch break
昼下がり
early afternoon
昼ごはん
lunch
昼の間
during the day
昼の三時
three o'clock in the afternoon
昼の仕事
work in the middle of the day, day job
昼に食べる
to eat at noon, to eat for lunch
昼になる
to become daytime, to strike noon
昼にする
to do during the day, to take lunch
今日の昼、あそこの定食屋でランチしない？
Why don't we eat lunch together at that diner during our lunch break today?
目ざまし時計が鳴らなくて、起きたらすでに昼だった。
My alarm didn't go off and it was already noon when I woke up.
昼休みの終わりには、必ずコーヒーを飲むようにしています。
I always make sure to drink coffee at the end of my lunch break.