portion vs allot

portion is a noun but allot is not a noun.

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

As verbs, portion and allot are synonyms defined as:

Other synonyms of portion include assign.

As verbs, allot is a hypernym of portion; that is, allot is a word with a broader meaning than portion:

portion (noun)	allot (noun)
the allotment of some amount by dividing something
something less than the whole of a human artifact
an individual quantity of food or drink taken as part of a meal
assets belonging to or due to or contributed by an individual person or group
money or property brought by a woman to her husband at marriage
something determined in relation to something that includes it
your overall circumstances or condition in life (including everything that happens to you)

portion (verb)	allot (verb)
give out	allow to have
	give out
	administer or bestow, as in small portions