[ jiǔ ]

1.Eight plus one. See figure.

2.Every nine days from the winter solstice is a "Nine". From one "Nine", two "Nine" and three "Nine" are counted until nine "Nine"

example:数九。冬练三九，夏练三伏。九尽寒尽。

3.Represents multiple or majority

example:九霄。九泉。三弯九转。九死一生。

4.Family name.