to subject someone to aggressive pressure or intimidation, often causing distress or discomfort

嫌がらせをする (いやがらせをする), いじめる
to constantly chase, pressure, or follow someone to gain or achieve something

追い回す(おいまわす), 追跡する(ついせきする)
to irritate someone or cause problems for them, particularly by asking them to do something over and over again

迷惑をかける, 煩わせる
to continually cause someone or something difficulty, pain, or worry

悩ます(なやます), 苦しめる(くるしめる)
to cause pain, suffering, or distress, often as a result of illness, injury, or hardship

苦しめる, 悩ませる
to secretly investigate or look around to discover private information about someone

盗み見る, のぞき見る
to secretly listen to a conversation without the knowledge or consent of those involved

盗み聞きする, 傍聴する
to secretly enter an organization or group with the aim of spying on its members or gathering information

浸透する (しんとうする), 侵入する (しんにゅうする)
