anthropology

Kyūjitai form of 人類学: anthropology

alive / lively / (of a machine or device) on; active; in operation

dissolved / liquefied / molten

(weaponry) a thermonuclear weapon

nuclear test

人日: also known as nanakusa no sekku (七草の節句, ななくさのせっく: "The festival of seven herbs"); one of the five seasonal festivals, (五節句, gosekku). It is celebrated on January 7.

仁: a male given name

人: on for person / 仁: benevolence / ジン: gin / 壬: ninth heavenly stem / 陣: (military) camp, formation / 神: god

人: person from that group; -ian, -ish / 人: person who does that thing