昼休み
ひるやすみ · hiruyasumi · JLPT N4 · noun
interruption
🍱 昼休み = 昼 (hiru, noon) + 休み (yasumi, rest): the noon rest
昼 means daytime or noon, and 休み is the noun form of 休む, to rest. The same 休み shows up in 夏休み (summer holiday) and 冬休み (winter holiday), so 昼休み is simply the midday version: the break you take at lunch.