hovel vs iglu

hovel and iglu both are nouns.

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

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

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

Other hyponyms of hovel include igloo, mudhif.

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