support vs keep

support and keep both are nouns.

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

As nouns, support and keep are synonyms defined as:

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

support (noun)	keep (noun)
aiding the cause or policy or interests of	the main tower within the walls of a medieval castle or fortress
the act of bearing the weight of or strengthening	a cell in a jail or prison
documentary validation	the financial means whereby one lives
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

support (verb)	keep (verb)
establish or strengthen as with new evidence or facts	prevent (food) from rotting
put up with something or somebody unpleasant	prevent the action or expression of
adopt as a belief	stick to correctly or closely
argue or speak in defense of	maintain by writing regular records
be a regular customer or client of	supply with necessities and support
be the physical support of; carry the weight of	hold and prevent from leaving
play a subordinate role to (another performer)	retain possession of
support materially or financially	look after; be the keeper of; have charge of
give moral or psychological support, aid, or courage to	retain rights to
be behind; approve of	maintain for use and service
support with evidence or authority or make more certain or confirm	have as a supply
	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