天てん保ぽうTop 40000MeaningsNoun1. Tenpō era (1830.12.10-1844.12.2) (Historical)Kanji used天heaven保preservePitch accentてんぽうUsed in vocabulary天てん保ぽう暦れきTenpō calendar; Japan's last lunisolar calendar, in use from 1844 to 1872Noun