keep vs support

keep and support both are nouns.

Word	Noun	Adjective	Verb	Adverb
keep	Yes	No	Yes	No
support	Yes	No	Yes	No

As nouns, keep and support are synonyms defined as:

Other synonyms of keep include bread and butter, livelihood, living, sustenance.

keep (noun)	support (noun)
the main tower within the walls of a medieval castle or fortress	aiding the cause or policy or interests of
a cell in a jail or prison	the act of bearing the weight of or strengthening
the financial means whereby one lives	documentary validation
	a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
	the activity of providing for or maintaining by supplying with money or necessities
	any device that bears the weight of another thing
	supporting structure that holds up or provides a foundation
	something providing immaterial assistance to a person or cause or interest
	a musical part (vocal or instrumental) that supports or provides background for other musical parts
	the financial means whereby one lives
	financial resources provided to make some project possible

keep (verb)	support (verb)
prevent (food) from rotting	establish or strengthen as with new evidence or facts
prevent the action or expression of	put up with something or somebody unpleasant
stick to correctly or closely	adopt as a belief
maintain by writing regular records	argue or speak in defense of
supply with necessities and support	be a regular customer or client of
hold and prevent from leaving	be the physical support of; carry the weight of
retain possession of	play a subordinate role to (another performer)
look after; be the keeper of; have charge of	support materially or financially
retain rights to	give moral or psychological support, aid, or courage to
maintain for use and service	be behind; approve of
have as a supply	support with evidence or authority or make more certain or confirm
store or keep customarily
stop (someone or something) from doing something or being in a certain state
allow to remain in a place or position or maintain a property or feature
conform one's action or practice to
behave as expected during of holidays or rites
cause to continue in a certain state, position, or activity
supply with room and board
maintain in safety from injury, harm, or danger
fail to spoil or rot
continue a certain state, condition, or activity
to rear