留堂

liútáng
  1. to stay behind (after class)
  2. to be given detention
  3. detention

CEDICT

to be kept in school to serve one's detention

Wiktionary

Entry Composition

=1 留 liú old variant of 留 liú
=1 留 liú
  1. to leave (a message etc)
  2. to retain
  3. to stay
  4. to remain
  5. to keep
  6. to preserve
=1 留 liú old variant of 留 liú
2 堂 táng
  1. (main) hall
  2. large room for a specific purpose
  3. relationship between cousins etc on the paternal side of a family
  4. of the same clan
  5. classifier for classes, lectures etc
  6. classifier for sets of furniture

classifier: 間

Related entries

留下 liúxià
  1. to leave behind
  2. to stay behind
  3. to remain
  4. to keep
  5. not to let (sb) go
留下來了

It is left here.

Source: Tatoeba

拘役 jūyì detention
羁押 jīyā
  1. to detain
  2. to take into custody
  3. detention
  4. imprisonment