put on vs gum

put on is not a noun while gum is a noun.

Word	Noun	Adjective	Verb	Adverb
put on	No	Yes	Yes	No
gum	Yes	No	Yes	No

As verbs, gum is a hyponym of put on; that is, gum is a word with a more specific, narrower meaning than put on:

Other hyponyms of put on include dab, swab, swob, daub, dress, cream, cold-cream, putty, sponge on, clap on, slam on, slap on.

put on (noun)	gum (noun)
	the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
	a preparation (usually made of sweetened chicle) for chewing
	any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum
	wood or lumber from any of various gum trees especially the sweet gum
	any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
	cement consisting of a sticky substance that is used as an adhesive

put on (adjective)	gum (adjective)
adopted in order to deceive

put on (verb)	gum (verb)
put clothing on one's body	exude or form gum
increase (one's body weight)	become sticky
add to something existing	grind with the gums; chew without teeth and with great difficulty
add to the odometer	cover, fill, fix or smear with or as if with gum
fool or hoax
coat, cover or smear a surface with
prepare and supply with the necessary equipment for execution or performance
carry out (performances)
put on the stove or ready for cooking