The kanji and the word are exactly the same. That means they share meanings as well. 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!
Why don't we eat lunch together at that diner during our lunch break today?
My alarm didn't go off and it was already noon when I woke up.
I’m going to take a one hour lunch break, so please hold my calls.