과자
gwaja · TOPIK 1
snack, cookie, biscuit
🍪 菓子 = fruit/confection (과) + small thing (자); same word as Japanese kashi
From hanja 菓子: 菓 (과) is confection, originally fruit, and 子 (자) is a noun suffix for small things. Japanese reads the same characters as kashi (okashi = sweets), so the two words are cousins.