bob vs coif

bob and coif both are nouns.

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

As nouns, coif is a hypernym of bob; that is, coif is a word with a broader meaning than bob:

Other hypernyms of bob include coiffure, hair style, hairdo, hairstyle.

As verbs, coif is a hypernym of bob; that is, coif is a word with a broader meaning than bob:

Other hypernyms of bob include arrange, coiffe, coiffure, do, dress, set.

bob (noun)	coif (noun)
a short abrupt inclination (as of the head)	a skullcap worn by nuns under a veil or by soldiers under a hood of mail or formerly by British sergeants-at-law
a short or shortened tail of certain animals	the arrangement of the hair (especially a woman's hair)
a small float usually made of cork; attached to a fishing line
a hanging weight, especially a metal ball on a string
a long racing sled (for 2 or more people) with a steering mechanism
a hair style for women and children; a short haircut all around
a former monetary unit in Great Britain

bob (verb)	coif (verb)
cut hair in the style of a bob	arrange attractively
make a curtsy; usually done only by girls and women; as a sign of respect	cover with a coif
remove or shorten the tail of an animal
move up and down repeatedly in a quick, short movement
ride a bobsled