seal vs close

seal and close both are nouns.

Word	Noun	Adjective	Verb	Adverb
seal	Yes	No	Yes	No
close	Yes	Yes	Yes	Yes

As verbs, close is a hypernym of seal; that is, close is a word with a broader meaning than seal:

Other hypernyms of seal include fill up.

As verbs, close is a hypernym of seal; that is, close is a word with a broader meaning than seal:

Other hypernyms of seal include shut.

seal (noun)	close (noun)
any of numerous marine mammals that come on shore to breed; chiefly of cold regions	the concluding part of any performance
a device incised to make an impression; used to secure a closing or to authenticate documents	the last section of a communication
fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters	the temporal end; the concluding time
fastener that provides a tight and perfect closure
a finishing coat applied to exclude moisture
an indication of approved or superior status
a stamp affixed to a document (as to attest to its authenticity or to seal it)
the pelt or fur (especially the underfur) of a seal

seal (adjective)	close (adjective)
	at or within a short distance in space or time or having elements near each other
	close in relevance or relationship
	not far distant in time or space or degree or circumstances
	marked by fidelity to an original
	rigorously attentive; strict and thorough
	crowded
	(of a contest or contestants) evenly matched
	of textiles
	confined to specific persons
	strictly confined or guarded
	used of hair or haircuts
	giving or spending with reluctance
	fitting closely but comfortably
	inclined to secrecy or reticence about divulging information
	lacking fresh air

seal (verb)	close (verb)
decide irrevocably	finish a game in baseball by protecting a lead
hunt seals	complete a business deal, negotiation, or an agreement
close with or as if with a seal	move so that an opening or passage is obstructed; make shut
affix a seal to	become closed
make tight; secure against leakage	bar access to
cover with varnish	fill or stop up
	bring together all the elements or parts of
	unite or bring into contact or bring together the edges of
	change one's body stance so that the forward shoulder and foot are closer to the intended point of impact
	come together, as if in an embrace
	draw near
	cause a window or an application to disappear on a computer desktop
	cease to operate or cause to cease operating
	finish or terminate (meetings, speeches, etc.)
	engage at close quarters
	come to a close
	be priced or listed when trading stops

seal (adverb)	close (adverb)
	near in time or place or relationship
	in an attentive manner