gesture vs motion

gesture and motion both are nouns.

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

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

gesture: motion of hands or body to emphasize or help to express a thought or feeling
motion: a change of position that does not entail a change of location

Other hypernyms of gesture include motility, move, movement.

As nouns, gesture and motion are synonyms defined as:

gesture and motion: the use of movements (especially of the hands) to communicate familiar or prearranged signals

As verbs, gesture and motion are synonyms defined as:

Other synonyms of gesture include gesticulate.

gesture (noun)	motion (noun)
motion of hands or body to emphasize or help to express a thought or feeling	a change of position that does not entail a change of location
something done as an indication of intention	the act of changing location from one place to another
the use of movements (especially of the hands) to communicate familiar or prearranged signals	the use of movements (especially of the hands) to communicate familiar or prearranged signals
	a formal proposal for action made to a deliberative assembly for discussion and vote
	a natural event that involves a change in the position or location of something
	an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
	a state of change

gesture (verb)	motion (verb)
show, express or direct through movement	show, express or direct through movement