1to dispatch sb to do sth
2to make sb leave
3to pass (the time)
4(old) to make arrangements
5(old) to bestow (alms etc)
Example
MMiicckkděng dài等待yuē huì约会de的shí hou时候kào靠dú读zá zhì杂志dǎ fa打发shí jiān时间。
Mick等待约会的时候靠读杂志打发时间。
Mick killed time by reading a magazine while waiting for his date.