fly tent vs collapsible shelter

fly tent and collapsible shelter both are nouns.

Word	Noun	Adjective	Verb	Adverb
fly tent	Yes	No	No	No
collapsible shelter	Yes	No	No	No

As nouns, collapsible shelter is a hypernym of fly tent; that is, collapsible shelter is a word with a broader meaning than fly tent:

fly tent: a tent with a fly front
collapsible shelter: a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs)

Other hypernyms of fly tent include tent.

fly tent (noun)	collapsible shelter (noun)
a tent with a fly front	a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs)