gleam vs shine

gleam and shine both are nouns.

Word	Noun	Adjective	Verb	Adverb
gleam	Yes	No	Yes	No
shine	Yes	No	Yes	No

As nouns, shine is a hypernym of gleam; that is, shine is a word with a broader meaning than gleam:

Other hypernyms of gleam include effulgence, radiance, radiancy, refulgence, refulgency.

As verbs, gleam and shine are synonyms defined as:

Other synonyms of gleam include glint, glisten, glitter.

gleam (noun)	shine (noun)
an appearance of reflected light	the quality of being bright and sending out rays of light
a flash of light (especially reflected light)

gleam (verb)	shine (verb)
to shine with faint or brief light	make (a surface) shine
shine brightly, like a star or a light	experience a feeling of well-being or happiness, as from good health or an intense emotion
be shiny, as if wet	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)