carve up vs lot

carve up is not a noun while lot is a noun.

Word	Noun	Adjective	Verb	Adverb
carve up	No	No	Yes	No
lot	Yes	No	Yes	No

As verbs, lot is a hyponym of carve up; that is, lot is a word with a more specific, narrower meaning than carve up:

carve up (noun)	lot (noun)
	anything (straws or pebbles etc.) taken or chosen at random
	an unofficial association of people or groups
	any collection in its entirety
	a parcel of land having fixed boundaries
	(often followed by `of') a large number or amount or extent
	your overall circumstances or condition in life (including everything that happens to you)

carve up (verb)	lot (verb)
separate into parts or portions	administer or bestow, as in small portions
	divide into lots, as of land, for example