iglu vs hovel

iglu and hovel both are nouns.

Word	Noun	Adjective	Verb	Adverb
iglu	Yes	No	No	No
hovel	Yes	No	No	No

As nouns, hovel is a hypernym of iglu; that is, hovel is a word with a broader meaning than iglu:

iglu: an Eskimo hut; usually built of blocks (of sod or snow) in the shape of a dome
hovel: small crude shelter used as a dwelling

Other hypernyms of iglu include hut, hutch, shack, shanty.

iglu (noun)	hovel (noun)
an Eskimo hut; usually built of blocks (of sod or snow) in the shape of a dome	small crude shelter used as a dwelling