roach vs hairstyle

roach and hairstyle both are nouns.

Word	Noun	Adjective	Verb	Adverb
roach	Yes	No	Yes	No
hairstyle	Yes	No	No	No

As nouns, hairstyle is a hypernym of roach; that is, hairstyle is a word with a broader meaning than roach:

Other hypernyms of roach include coif, coiffure, hair style, hairdo.

roach (noun)	hairstyle (noun)
any of numerous chiefly nocturnal insects; some are domestic pests	the arrangement of the hair (especially a woman's hair)
European freshwater food fish having a greenish back
the butt of a marijuana cigarette
street names for flunitrazepam
a roll of hair brushed back from the forehead

roach (verb)	hairstyle (verb)
cut the mane off (a horse)
comb (hair) into a roach