1undertaking
2project
3activity
4(charitable, political or revolutionary) cause
5publicly funded institution, enterprise or foundation
6career
7occupation
Examples
tā她xiǎng想qù去běi jīng北京fā zhǎn发展tā她de的shì yè事业。
她想去北京发展她的事业。
She wants to go to Beijing to further her career.
他卖掉了他的事业并且退休。
He sold his business and retired.
新年！新事业！
New Year! New Career!