shanty vs igloo

shanty and igloo both are nouns.

Word	Noun	Adjective	Verb	Adverb
shanty	Yes	No	No	No
igloo	Yes	No	No	No

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

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

Other hyponyms of shanty include iglu, mudhif.

shanty (noun)	igloo (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
a rhythmical work song originally sung by sailors