Lunch; the meal eaten around midday (same as 昼飯 or 昼ご飯).
今日の午飯は近くの定食屋で食べた。
I had lunch today at a nearby set-meal restaurant.
午飯を抜くと午後に眠くなることが多い。
If I skip lunch, I often get sleepy in the afternoon.
みんなで公園で午飯を食べようと出かけた。
We went out to eat lunch together in the park.