nubbin vs stub

nubbin and stub both are nouns.

Word	Noun	Adjective	Verb	Adverb
nubbin	Yes	No	No	No
stub	Yes	No	Yes	No

As nouns, stub is a hypernym of nubbin; that is, stub is a word with a broader meaning than nubbin:

Other hypernyms of nubbin include nub.

nubbin (noun)	stub (noun)
a small nub (especially an undeveloped fruit or ear of corn)	the small unused part of something (especially the end of a cigarette that is left after smoking)
	a torn part of a ticket returned to the holder as a receipt
	the part of a check that is retained as a record
	a short piece remaining on a trunk or stem where a branch is lost
	a small piece

nubbin (verb)	stub (verb)
	strike (one's toe) accidentally against an object
	clear of weeds by uprooting them
	extinguish by crushing
	pull up (weeds) by their roots