Ya/야: means "hey" in most situations. There are multiple ways of using YA. Yell it out loud when frustrated (like when you're fighting and you're at a loss for words) and if someone wronged you (i.e. a pickpocket snatched your purse).

What is wo in Korean?

Woo, also spelled Wu or Wo, Ou, U, is an uncommon Korean surname, a single-syllable Korean given name, and an element in many two-syllable Korean given names. As given name meaning differs based on the hanja used to write it.

How do you scream no in Korean?

아니요 (aniyo)

Some alternate spellings that you might see are 아니오 (anio) and 아뇨 (anyo). These mean the same thing but the correct spelling is 아니요 (aniyo).