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noon; midday
daytime
lunch
「午」 has another reading with different meanings.
the Horse (seventh sign of the Chinese zodiac)
午うまになったら休もうやすもう。
Let's rest when it's noon.
昼ひるごはんご飯は十じゅう二に時じに食べるたべる。
I eat lunch at twelve.
午うまごはんは何なんにしますか。
What shall we have for lunch?