map vs plat

map and plat both are nouns.

Word	Noun	Adjective	Verb	Adverb
map	Yes	No	Yes	No
plat	Yes	No	Yes	No

As nouns, plat is a hyponym of map; that is, plat is a word with a more specific, narrower meaning than map:

map: a diagrammatic representation of the earth's surface (or part of it)
plat: a map showing planned or actual features of an area (streets and building lots etc.)

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

Other hyponyms of map include chart, plot.

map (noun)	plat (noun)
a diagrammatic representation of the earth's surface (or part of it)	a map showing planned or actual features of an area (streets and building lots etc.)
(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

map (verb)	plat (verb)
to establish a mapping (of mathematical elements or sets)	make a plot of
explore or survey for the purpose of making a map
make a map of; show or establish the features of details of
depict as if on a map
plan, delineate, or arrange in detail
locate within a specific region of a chromosome in relation to known DNA or gene sequences