왜요? (polite 'why?') · 왜냐하면 (because)
why
Example
어제 왜 학교에 안 왔어요?
Why didn't you come to school yesterday?
Word parts
Sounds like English 'way', but means 'why': 왜요? 'Why?'
Good to know
Politely ask 왜요? A bare 왜? can sound blunt to elders.
Related words