how many times, how often

thousands

what floor?

how many times? / numerous times, many times

kanji approved for use in names registered in the 戸籍(こせき) (koseki, “family register”)

kanji not approved for regular use

Kanji characters outside of the jōyō kanji and jinmeiyō kanji lists. For example, 攪.

地震雷火事親父: the father is feared as much as the worst natural occurrences

(literary, attributive) a state of pure naturality, free from artifice