hostel vs living accommodations

hostel and living accommodations both are nouns.

Word	Noun	Adjective	Verb	Adverb
hostel	Yes	No	No	No
living accommodations	Yes	No	No	No

As nouns, living accommodations is a hypernym of hostel; that is, living accommodations is a word with a broader meaning than hostel:

hostel: inexpensive supervised lodging (especially for youths on bicycling trips)
living accommodations: structures collectively in which people are housed

Other hypernyms of hostel include housing, lodging.

hostel (noun)	living accommodations (noun)
inexpensive supervised lodging (especially for youths on bicycling trips)	structures collectively in which people are housed
a hotel providing overnight lodging for travelers