detention cell vs prison cell

detention cell and prison cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
detention cell	Yes	No	No	No
prison cell	Yes	No	No	No

As nouns, prison cell is a hypernym of detention cell; that is, prison cell is a word with a broader meaning than detention cell:

detention cell: a large cell where prisoners (people awaiting trial or sentence or refugees or illegal immigrants) are confined together temporarily
prison cell: a room where a prisoner is kept

Other hypernyms of detention cell include cell, jail cell.

detention cell (noun)	prison cell (noun)
a large cell where prisoners (people awaiting trial or sentence or refugees or illegal immigrants) are confined together temporarily	a room where a prisoner is kept