Compare: 中 vs 中

中ちゅう

medium (size); average (grade, level, etc.); middle

中じゅう

(all) through (e.g. the night); throughout (e.g. the year); all ... long

ちゅう中

N5CommonNoun

medium (size); average (grade, level, etc.); middle

只今、僕(ぼく)は旅立ちの日(ひ)に向けて修業中(ちゅう)です。

Right now I'm training in preparation for the day we set off.

ダイエット中(ちゅう)脱力感がでます、どうすればよい？

I feel lethargic when I diet, what should I do?

じゅう中

N5CommonSuffix

(all) through (e.g. the night); throughout (e.g. the year); all ... long

彼(かれ)は部屋中(じゅう)飛び回った。

He jumped about the room.

明日中(じゅう)には国境を越えます。

We'll be across the border by tomorrow.