Correct

叫号

/ jiào háo /
Strokes

Example

As a Verb

call out the numbers (of waiting patients, etc)

1
zuò
zài
zhěnshì
诊室
wài
  
,
děng
zhāo
shēng
医生
jiàoháo
叫号
  

She sat outside the treatment room, waiting for her number to be called.

As a Verb

chant a work song

As a Verb

challenge; provoke