jì​nián

calendar era

纪年 (紀年) jì​nián
calendar era noun
a system of numbering years or a specific chronological era
annals noun
a chronological record of events; a historical chronicle
number years verb
to number or record the years according to a specific system or era

Frequency

Movie subtitles
0.060 per million appears in 0% of films
Written text
0.556 per million

Sources

Definitions
CC-CEDICT