stem vs check

stem and check both are nouns.

Word	Noun	Adjective	Verb	Adverb
stem	Yes	No	Yes	No
check	Yes	No	Yes	No

As verbs, check is a hypernym of stem; that is, check is a word with a broader meaning than stem:

stem (noun)	check (noun)
a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it	the act of restraining power or action or limiting excess
front part of a vessel or aircraft	obstructing an opponent in ice hockey
the tube of a tobacco pipe	(chess) a direct attack on an opponent's king
cylinder forming a long narrow part of something	the act of inspecting or verifying
(linguistics) the form of a word after all affixes are removed	a textile pattern of squares or crossed lines (resembling a checkerboard)
a slender or elongated structure that supports a plant or fungus or a plant part or plant organ	a mark left after a small piece has been chopped or broken off of something
	an appraisal of the state of affairs
	additional proof that something that was believed (some fact or hypothesis or theory) is correct
	something immaterial that interferes with or delays action or progress
	the bill in a restaurant
	a mark indicating that something has been noted or completed etc.
	a written order directing a bank to pay money
	the state of inactivity following an interruption

stem (verb)	check (verb)
stop the flow of a liquid	slow the growth or development of
remove the stem from	become fractured; break or crack on the surface only
grow out of, have roots in, originate in	make cracks or chinks in
cause to point inward	arrest the motion (of something) abruptly
	examine so as to determine accuracy, quality, or condition
	put a check mark on or near or next to
	be careful or certain to do something; make certain of something
	verify by consulting a source or authority
	write out a check on a bank account
	find out, learn, or determine with certainty, usually by making an inquiry or other effort
	place into check
	decline to initiate betting
	hold back, as of a danger or an enemy; check the expansion or influence of
	mark into squares or draw squares on; draw crossed lines on
	stop in a chase especially when scent is lost
	abandon the intended prey, turn, and pursue an inferior prey
	stop for a moment, as if out of uncertainty or caution
	hand over something to somebody as for temporary safekeeping
	consign for shipment on a vehicle
	develop (a child's or animal's) behavior by instruction and practice; especially to teach self-control
	make an examination or investigation
	lessen the intensity of; temper; hold in restraint; hold or keep within limits
	block or impede (a player from the opposing team) in ice hockey
	be compatible, similar or consistent; coincide in their characteristics
	be verified or confirmed; pass inspection