sound of crying

Phonosemantic compound. represents the meaning and represents the sound.

Components
口 meaning component

  Meaning component

kǒu

  

mouth

烏 sound component

  Sound component

  

crow

Evolution

嗚 Seal script Chu (Warring States: 475-221 BC)

Seal script

Chu (Warring States: 475-221 BC)
嗚 Clerical script Eastern Han dynasty (25-220 AD)

Clerical script

Eastern Han dynasty (25-220 AD)
嗚 Regular script Modern

Regular script

Modern
Definitions

() 

sound of crying, sobbing; (onom.) for humming or whimpering

Most common words with 嗚
Freq.
Word
Meaning

(onom.) for humming or whimpering

呜呜

(interj) boo hoo

呜呼

alas

呜咽

to sob

一命呜呼

to die (idiom)