native · counting things, age · same before a counter (쉰 살, 쉰다섯 명)
fifty
Example
우리 어머니는 올해 쉰이세요.
My mother is fifty this year.
Good to know
Native tens go on: 예순 60, 일흔 70, 여든 80, 아흔 90. For larger numbers Sino-Korean is far more common.
Related words