utensil, vessel, receptacle, implement, instrument, ability, container, tool, set

彼は将来国家の棟梁たるべき器だ。

He has the capacity to be a future leader of the nation.

いくら器だけを日本一にしても、中身が三流やったらな～んの意味もないんちゃうの？

The container may be the best in Japan, but if the contents are third class, then isn't it completely meaningless?

しかしながら、食べ物を器から口まで運ぶ必要があり、その必要性に応えるために、はしが現れたのだった。

There was, however, a need for food to be carried from the bowl to the mouth, and chopsticks came along to meet that need.