coiffe vs coif

coiffe is not a noun while coif is a noun.

Word	Noun	Adjective	Verb	Adverb
coiffe	No	No	Yes	No
coif	Yes	No	Yes	No

As verbs, coiffe and coif are synonyms defined as:

Other synonyms of coiffe include arrange, coiffure, do, dress, set.

coiffe (noun)	coif (noun)
	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)

coiffe (verb)	coif (verb)
arrange attractively	arrange attractively
	cover with a coif