约
yuē
I v.
1) make an appointment
我约了医生。 I've made an appointment with the doctor.
2) ask; invite
咱们去约他出来。 Let's go and ask him out.
3) reduce a fraction
II b.f.
1) restrict; restrain (约束)
2) economical; frugal (节约)
3) simple; brief (简约)
4) pact; agreement; contract (合约)
5) indistinct (隐约)
III adv.
about; around; approximately