blot vs defile

blot and defile both are nouns.

Word	Noun	Adjective	Verb	Adverb
blot	Yes	No	Yes	No
defile	Yes	No	Yes	No

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

blot: make a spot or mark onto
defile: make dirty or spotty, as by exposure to air; also used metaphorically

Other hyponyms of blot include splotch, maculate, stain, sully, tarnish, bespeckle, speckle, bespatter, spatter.

blot (noun)	defile (noun)
an act that brings discredit to the person who does it	a narrow pass (especially one between mountains)
a blemish made by dirt

blot (verb)	defile (verb)
dry (ink) with blotting paper	spot, stain, or pollute
make a spot or mark onto	make dirty or spotty, as by exposure to air; also used metaphorically
	place under suspicion or cast doubt upon