gradient vs rake

gradient and rake both are nouns.

Word	Noun	Adjective	Verb	Adverb
gradient	Yes	No	No	No
rake	Yes	No	Yes	No

As nouns, rake is a hyponym of gradient; that is, rake is a word with a more specific, narrower meaning than gradient:

gradient: the property possessed by a line or surface that departs from the horizontal
rake: degree of deviation from a horizontal plane

Other hyponyms of gradient include grade, pitch, slant, abruptness, precipitousness, steepness, gentleness, gradualness.

gradient (noun)	rake (noun)
the property possessed by a line or surface that departs from the horizontal	a long-handled tool with a row of teeth at its head; used to move leaves or loosen soil
a graded change in the magnitude of some physical quantity or dimension	degree of deviation from a horizontal plane
	a dissolute man in fashionable society

gradient (verb)	rake (verb)
	gather with a rake
	level or smooth with a rake
	scrape gently
	move through with or as if with a rake
	examine hastily
	sweep the length of