gravitate vs lean

gravitate is not a noun while lean is a noun.

Word	Noun	Adjective	Verb	Adverb
gravitate	No	No	Yes	No
lean	Yes	Yes	Yes	No

As verbs, lean is a hypernym of gravitate; that is, lean is a word with a broader meaning than gravitate:

Other hypernyms of gravitate include be given, incline, run, tend.

gravitate (noun)	lean (noun)
	the property possessed by a line or surface that departs from the vertical

gravitate (adjective)	lean (adjective)
	lacking in mineral content or combustible material
	lacking excess flesh
	not profitable or prosperous
	containing little excess

gravitate (verb)	lean (verb)
move due to the pull of gravitation	rely on for support
be attracted to	cause to lean or incline
move toward	to incline or bend from a vertical position
	cause to lean to the side
	have a tendency or disposition to do or be something; be inclined