容器
ようき · youki · JLPT N3 · noun
container
🫙📦 容器 = contain + vessel; 容 as in 内容 contents, 器 as in 食器 tableware
容 means to hold or contain, the same kanji as in 内容 (naiyou, contents). 器 means a vessel or utensil, as in 食器 (shokki, tableware) and 楽器 (gakki, instrument). Together they make a vessel that holds things, so a container.