後: a time after the present time

to live in, to inhabit, to abide at, to dwell at

後に: subsequently, later on

later, afterwards, some time after the present

then / soon afterward; after that; thereafter

a surname / a place name

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

town

a surname