noun, noun or participle which takes 'suru', transitive verb
spy; spying
Used both as a noun for a person who gathers secret information and as スパイする for the act of spying on someone or something.
彼は産業スパイとして逮捕された。
He was arrested as an industrial spy.
彼らは隣国の軍事施
They were spying on the neighboring country's military facilities.