昼食
ちゅうしょく · chuushoku · JLPT N3 · noun
lunch
🍱 昼食 = noon (昼) + meal (食): the midday meal
昼 means daytime or noon, and 食 means to eat or food, as in 食べる (たべる). The on'yomi ちゅう + しょく makes 昼食 more formal than 昼ご飯. Hook: you chew (ちゅう) your lunch at noon.