rùn​nián

leap year

闰年 (閏年) rùn​nián
leap year time word
A year in the solar (Gregorian) calendar containing 366 days, with an extra day added to February.
lunar leap year time word
A year in a lunar or lunisolar calendar that contains an extra (thirteenth) intercalary month to keep the calendar in sync with the seasons.

Frequency

Movie subtitles
0.120 per million appears in 0% of films
Written text
0.475 per million

Sources

Definitions
CC-CEDICT