1 hell

2 infernal

3 underworld

1 court eunuch

2 palace eunuch

1 to monitor

1 prison

1 to control

2 to supervise

3 to inspect

1 hell on earth (idiom); suffering the torments of Buddhist hell while still alive

2 fig. having an uncomfortable time

1 lit. the emperor is not worried, but his eunuchs are (idiom)

2 fig. the observers are more anxious than the person involved

1 lit. to get shackled and thrown in jail (idiom)

2 fig. to be put behind bars

3 to get jailed