lot vs Four Hundred

lot and Four Hundred both are nouns.

Word	Noun	Adjective	Verb	Adverb
lot	Yes	No	Yes	No
Four Hundred	Yes	No	No	No

As nouns, Four Hundred is a hyponym of lot; that is, Four Hundred is a word with a more specific, narrower meaning than lot:

lot (noun)	Four Hundred (noun)
anything (straws or pebbles etc.) taken or chosen at random	the exclusive social set of a city
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)

lot (verb)	Four Hundred (verb)
administer or bestow, as in small portions
divide into lots, as of land, for example