portion vs lot

portion and lot both are nouns.

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

As nouns, portion and lot are synonyms defined as:

portion and lot: your overall circumstances or condition in life (including everything that happens to you)

Other synonyms of portion include circumstances, destiny, fate, fortune, luck.

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

portion (noun)	lot (noun)
the allotment of some amount by dividing something	anything (straws or pebbles etc.) taken or chosen at random
something less than the whole of a human artifact	an unofficial association of people or groups
an individual quantity of food or drink taken as part of a meal	any collection in its entirety
assets belonging to or due to or contributed by an individual person or group	a parcel of land having fixed boundaries
money or property brought by a woman to her husband at marriage	(often followed by `of') a large number or amount or extent
something determined in relation to something that includes it	your overall circumstances or condition in life (including everything that happens to you)
your overall circumstances or condition in life (including everything that happens to you)

portion (verb)	lot (verb)
give out	administer or bestow, as in small portions
	divide into lots, as of land, for example