As a noun detention is
detention.
imprisionment
Not English
Imprisionment has no English definition. It may be misspelled.
English words similar to 'imprisionment':
imprisonment,
infringement,
impartialist,
impressionist,
informaticist,
informationist,
inferentialist,
impercipient,
imperativist,
imbarrassment,
imperseverant,
ineffervescent
detention
English
Noun
(
wikipedia detention)
(uncountable) The act of detaining or the state of being detained.
(countable) A temporary state of custody or confinement, especially of a prisoner awaiting trial, or of a student being punished.
Derived terms
* detention basin
* detention home