お昼
おひる · ohiru · JLPT N3 · noun
noon
🍱🕛 お + 昼 = polite o + hiru (midday): the midday meal, oh here comes lunch
昼 (hiru) means daytime or noon. Adding the polite prefix お makes お昼, the everyday word for both noon and lunch, since lunch is the meal eaten at midday. Compare 昼ご飯 (hirugohan), literally midday rice.