give off vs shine

give off is not a noun while shine is a noun.

Word	Noun	Adjective	Verb	Adverb
give off	No	No	Yes	No
shine	Yes	No	Yes	No

As verbs, shine is a hyponym of give off; that is, shine is a word with a more specific, narrower meaning than give off:

give off: give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
shine: be bright by reflecting or casting light

Other hyponyms of give off include effuse, reflect, spark, sparkle, radiate, scintillate, fume, smoke, reek, shoot, ray, steam.

give off (noun)	shine (noun)
	the quality of being bright and sending out rays of light

give off (verb)	shine (verb)
have as a by-product	make (a surface) shine
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.	experience a feeling of well-being or happiness, as from good health or an intense emotion
	be shiny, as if wet
	have a complexion with a strong bright color, such as red or pink
	touch or seem as if touching visually or audibly
	be distinguished or eminent
	be clear and obvious
	emit light; be bright, as of the sun or a light
	be bright by reflecting or casting light
	throw or flash the light of (a lamp)