bow vs bob

bow and bob both are nouns.

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

bow (noun)	bob (noun)
a stroke with a curved piece of wood with taut horsehair strands that is used in playing stringed instruments	a short abrupt inclination (as of the head)
a slightly curved piece of resilient wood with taut horsehair strands; used in playing certain stringed instruments	a short or shortened tail of certain animals
a weapon for shooting arrows, composed of a curved piece of resilient wood with a taut cord to propel the arrow	a small float usually made of cork; attached to a fishing line
a knot with two loops and loose ends; used to tie shoelaces	a hanging weight, especially a metal ball on a string
a decorative interlacing of ribbons	a long racing sled (for 2 or more people) with a steering mechanism
something curved in shape	a hair style for women and children; a short haircut all around
front part of a vessel or aircraft	a former monetary unit in Great Britain
an appearance by actors or performers at the end of the concert or play in order to acknowledge the applause of the audience
bending the head or body or knee as a sign of reverence or submission or shame or greeting

bow (verb)	bob (verb)
bend one's knee or body, or lower one's head	cut hair in the style of a bob
yield to another's wish or opinion	make a curtsy; usually done only by girls and women; as a sign of respect
bend the head or the upper part of the body in a gesture of respect or greeting	remove or shorten the tail of an animal
bend one's back forward from the waist on down	move up and down repeatedly in a quick, short movement
play on a stringed instrument with a bow	ride a bobsled