detox vs hospital ward

detox and hospital ward both are nouns.

Word	Noun	Adjective	Verb	Adverb
detox	Yes	No	Yes	No
hospital ward	Yes	No	No	No

As nouns, hospital ward is a hypernym of detox; that is, hospital ward is a word with a broader meaning than detox:

detox: the hospital ward or clinic in which patients are detoxified
hospital ward: block forming a division of a hospital (or a suite of rooms) shared by patients who need a similar kind of care

Other hypernyms of detox include ward.

detox (noun)	hospital ward (noun)
the hospital ward or clinic in which patients are detoxified	block forming a division of a hospital (or a suite of rooms) shared by patients who need a similar kind of care

detox (verb)	hospital ward (verb)
treat for alcohol or drug dependence