hair style vs coif

hair style and coif both are nouns.

Word	Noun	Adjective	Verb	Adverb
hair style	Yes	No	No	No
coif	Yes	No	Yes	No

As nouns, hair style and coif are synonyms defined as:

hair style and coif: the arrangement of the hair (especially a woman's hair)

Other synonyms of hair style include coiffure, hairdo, hairstyle.

hair style (noun)	coif (noun)
the arrangement of the hair (especially a woman's hair)	a skullcap worn by nuns under a veil or by soldiers under a hood of mail or formerly by British sergeants-at-law
	the arrangement of the hair (especially a woman's hair)

hair style (verb)	coif (verb)
	arrange attractively
	cover with a coif