天皇年號紀年

天 tian ˉ

Day, Sky, Heavens, Seasons, Climate, Weather, Nature, Natural, Necessities

皇 huangˊ

Emperor, Imperial

年 nianˊ

Year, Person's Age

號 haoˋ haoˊ

Code, Designation, Identification, Number, Mark, Symbol, Sign, (Hao2), Cry, Shout, Howl

紀年 jiˋ nianˊ

(Annal, Chronicle, Historical, Recording) Annal, Chronicle, Recording, Historical record