mark vs keep

mark and keep both are nouns.

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

As verbs, keep is a hypernym of mark; that is, keep is a word with a broader meaning than mark:

Other hypernyms of mark include celebrate, observe.

mark (noun)	keep (noun)
something that exactly succeeds in achieving its goal	the main tower within the walls of a medieval castle or fortress
an indication of damage	a cell in a jail or prison
a marking that consists of lines that cross each other	the financial means whereby one lives
the impression created by doing something unusual or extraordinary that people notice and remember
a number or letter indicating quality (especially of a student's performance)
a written or printed symbol (as for punctuation)
a symbol of disgrace or infamy
a distinguishing symbol
a visible indication made on a surface
a reference point to shoot at
a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
a person who is gullible and easy to take advantage of
formerly the basic unit of money in Germany

mark (verb)	keep (verb)
make or leave a mark on	prevent (food) from rotting
insert punctuation marks into	prevent the action or expression of
assign a grade or rank to, according to one's evaluation	stick to correctly or closely
celebrate by some ceremony or observation	maintain by writing regular records
put a check mark on or near or next to	supply with necessities and support
be a distinctive feature, attribute, or trait; sometimes in a very positive sense	hold and prevent from leaving
make underscoring marks	retain possession of
remove from a list	look after; be the keeper of; have charge of
designate as if by a mark	retain rights to
establish as the highest level or best performance	maintain for use and service
make small marks into the surface of	have as a supply
mark with a scar	store or keep customarily
attach a tag or label to	stop (someone or something) from doing something or being in a certain state
notice or perceive	allow to remain in a place or position or maintain a property or feature
to accuse or condemn or openly or formally or brand as disgraceful	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