Correct
幺
/ yāo /
Strokes
Definition
youngest/most junior/tiny/one (unambiguous spoken form when spelling out numbers, esp. on telephone or in military)/one or ace on dice or dominoes/variant of 吆[yāo], to shout
Example
As an Adjective
youngest
1
Yāoshū
幺叔
youngest uncle
As a Noun
one ［used for the numeral “1” in saying phone numbers, dates and the like］
2
Bào
报
huǒjǐng
火警
qǐng
请
bō
拨
yāoyāo
幺幺
jiǔ
九
。
To report a fire, please dial 119.
3
Dá
打
yāoyāo
幺幺
líng
零
bàojǐng
报警
dial 110 to call the police