1to put to use; to apply
2practical; applied (science, linguistics etc)
3application; practical use
4(computing) app
Examples
yǒu有tā它de的yìng yòng应用ma吗？
有它的应用吗？
Is there an app for that?
这个应用好极了。
This application is awesome.
你不能把这规则应用在所有事上。
You can't apply this rule to every case.