지음이 · 지음을
a true friend who understands you completely, a soulmate friend
Example
그는 나를 진정으로 이해해 주는 지음이에요.
He is a true friend who really understands me.
Word parts
지 know+음 sound
Literally 'one who knows the sound' — a friend who alone understood a musician's playing.
Good to know
Literary and rare in speech; 지음 also means 'making' from 짓다, so context matters.
Related words