allot vs earmark

allot is not a noun while earmark is a noun.

Word	Noun	Adjective	Verb	Adverb
allot	No	No	Yes	No
earmark	Yes	No	Yes	No

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

Other hyponyms of allot include allow, appropriate, reserve, set aside, allocate, apportion.

allot (noun)	earmark (noun)
	a distinctive characteristic or attribute of someone or something
	identification mark on the ear of a domestic animal

allot (verb)	earmark (verb)
allow to have	give or assign a resource to a particular person or cause
give out
administer or bestow, as in small portions