bow vs gesture

bow and gesture both are nouns.

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

As nouns, gesture is a hypernym of bow; that is, gesture is a word with a broader meaning than bow:

bow: bending the head or body or knee as a sign of reverence or submission or shame or greeting
gesture: the use of movements (especially of the hands) to communicate familiar or prearranged signals

Other hypernyms of bow include reverence, motion.

As verbs, gesture is a hypernym of bow; that is, gesture is a word with a broader meaning than bow:

Other hypernyms of bow include gesticulate, motion.

bow (noun)	gesture (noun)
a stroke with a curved piece of wood with taut horsehair strands that is used in playing stringed instruments	motion of hands or body to emphasize or help to express a thought or feeling
a slightly curved piece of resilient wood with taut horsehair strands; used in playing certain stringed instruments	something done as an indication of intention
a weapon for shooting arrows, composed of a curved piece of resilient wood with a taut cord to propel the arrow	the use of movements (especially of the hands) to communicate familiar or prearranged signals
a knot with two loops and loose ends; used to tie shoelaces
a decorative interlacing of ribbons
something curved in shape
front part of a vessel or aircraft
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)	gesture (verb)
bend one's knee or body, or lower one's head	show, express or direct through movement
yield to another's wish or opinion
bend the head or the upper part of the body in a gesture of respect or greeting
bend one's back forward from the waist on down
play on a stringed instrument with a bow