change in society, climate, or condition, transformation, variety / variation / declension / (sumo) a step to one side during the tachiai, the initial charge at the start of a sumo match; a sidestep

to change, to vary

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

view of life

Synonym of 桑田滄海 (sōdensōkai): drastic changes in the world

(grammar) declension

undergo a chemical change

chemical reaction, chemical change