고음이 · 고음을
high note, high pitch
Example
이 노래는 고음이 어려워서 노래방에서 못 불러요.
The high notes in this song are hard, so I can't sing it at karaoke.
Word parts
고 high+음 sound
Literally 'high sound'; the opposite is 저음 'low sound'.
Good to know
'Hit a high note' is 고음을 내다; 고음이 안 올라가요 means 'I can't reach the high notes.'
Related words