呜呜

Traditional form:

嗚嗚

Pinyin (reading):

wūwū

Definitions:

• (interj) boo hoo

Characters:

• 呜 - the sound of someone crying or sobbing
• 呜 - the sound of someone crying or sobbing

Traditional characters:

• 嗚 - the sound of someone crying or sobbing
• 嗚 - the sound of someone crying or sobbing