empty nest / Short for 空き巣狙い (akisu-nerai, “sneak thief”).

Alternative form of アナキスト (anakisuto, “anarchist”)

prod, nudge / prick, stab / bump into, collide / stick out, protrude / suddenly, abruptly, unexpectedly / (martial arts) an attacking move in kendo, sumo, et al.; thrust, lunge

請求書: bill

the basics, a general idea

a bill, a written statement of money owed

(mathematics) arithmetic series

prefecture-level city

(mathematics) geometric series

one day