blob vs speckle

blob and speckle both are nouns.

Word	Noun	Adjective	Verb	Adverb
blob	Yes	No	Yes	No
speckle	Yes	No	Yes	No

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

Other hyponyms of blob include splotch, defile, maculate, stain, sully, tarnish, bespeckle, bespatter, spatter.

blob (noun)	speckle (noun)
an indistinct shapeless form	a small contrasting part of something

blob (verb)	speckle (verb)
make a spot or mark onto	mark with small spots
	produce a mottled effect