hostel vs imaret

hostel and imaret both are nouns.

Word	Noun	Adjective	Verb	Adverb
hostel	Yes	No	No	No
imaret	Yes	No	No	No

As nouns, imaret is a hyponym of hostel; that is, imaret is a word with a more specific, narrower meaning than hostel:

Other hyponyms of hostel include caravan inn, caravansary, caravanserai, khan, post house, posthouse, roadhouse.

hostel (noun)	imaret (noun)
inexpensive supervised lodging (especially for youths on bicycling trips)	a hostel for pilgrims in Turkey
a hotel providing overnight lodging for travelers