keep vs mark

keep and mark both are nouns.

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

As verbs, mark is a hyponym of keep; that is, mark is a word with a more specific, narrower meaning than keep:

Other hyponyms of keep include commemorate, mourn, solemnise, solemnize.

keep (noun)	mark (noun)
the main tower within the walls of a medieval castle or fortress	something that exactly succeeds in achieving its goal
a cell in a jail or prison	an indication of damage
the financial means whereby one lives	a marking that consists of lines that cross each other
	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

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