To perform; to do; to conduct oneself; to carry out.

a spy / espionage

conduct espionage, spy

base (e.g. military, research)

(intent slang) Clipping of 基地外 (kichigai, “madness; insanity; enthusiasm”).

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

activity, work, operation

to act, to operate, to work