음력이 · 음력을
lunar calendar
Example
우리 할머니는 음력으로 생일을 지내세요.
My grandmother celebrates her birthday by the lunar calendar.
Word parts
음 yin, moon+력 calendar
Literally 'yin calendar' — the moon-based calendar.
Good to know
Pronounced [음녁] — nasalization; the solar calendar is 양력.
Related words