中なか蓋ぶた

noun

inner lid

Refers to a lid that sits inside a container, often under an outer lid, such as in traditional Japanese tea caddies or stacked boxes.

• 茶ちゃ入いれの中なか蓋ぶたを開あけると、抹まっ茶ちゃの香かおりが広ひろがった。

  When I opened the inner lid of the tea caddy, the aroma of matcha spread.

noun

medium-sized lid

Used for a lid of medium size, often in contexts where lids come in different sizes, such as cookware or storage containers. Less common than the 'inner lid' sense.

• この鍋なべには大おお蓋ぶた、中なか蓋ぶた、小こ蓋ぶたの三さん種しゅ類るいの蓋ふたが付ふ属ぞくしている。

  This pot comes with three types of lids: large, medium, and small.