再 [zài] - again, twice, re-
radical: 冂 [jiōng]: down box
decomposition: ⿱一冉 etymology: pictographic
hint: Two fish 冉 caught on a line 一 
Click on "Try it yourself" to draw the character 再 on the grid above.
Integrated Chinese Vocabulary:
再见 [zàijiàn]: see you again (L3-1)
[zài]: again (L3-1)
[zài]: again (L9-2)
再说 [zàishuō]: moreover (L15-2)
Stroke Sequence:
Stroke order animation courtesy of Hanzi Writer.