再 zài again; once more
Made up of [一 yī one radical 1, 冂 jiōng covering box radical 13]Made with 6 strokes.
Ancient small seal form 
Related characters
Also uses 一 yī component: 百 bǎi (hundred) 丙 bǐng (third in order) ; 不 bù (no; not) ; 丑 chǒu (shameful) ; 旦 dàn (dawn) ; 德 dé (virtue) ; 画 huà (to draw) ; 或 huò (maybe) ; 疆 jiāng (border) ; 开 kāi (begin) ; 丽 lì (beautiful) ; 两 liǎng (pair) ; 蒙 měng (Mongol) ; 灭 miè (to extinguish) ; 且 qiě (and) ; 世 shì (life) ; 与 yǔ (to give) ; 正 zhèng (correct)
Also uses 冂 jiōng component: 冈 gāng (ridge) 见 jiàn (see) ; 丽 lì (beautiful) ; 两 liǎng (pair) ; 南 nán (south) ; 内 nèi (inner) ; 尚 shàng (still) ; 商 shāng (commerce) ; 同 tóng (same) ; 网 wǎng (net) ; 雨 yǔ (rain) ; 周 zhōu (circuit)
Sounds same
在 zài (exist) ; 载 zài (to carry)Different tone
灾 zāi (disaster)Pronunciation
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Proverbs
再作冯妇 zài zuò féng fù Returning to old ways and habits. Feng Fu was a renowned tiger hunter from the state of Jin in the Zhou dynasty. After a successful career he vowed never to hurt another living thing. However when he chanced upon a local hunt for a vicious tiger he could not resist temptation to go back to old ways and killed the tiger single handed.东山再起 dōng shān zài qǐ Coming back after voluntary retirement into public life. Particularly for taking on high office after a long break away from all the action.