map vs choropleth map

map and choropleth map both are nouns.

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

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

map: a diagrammatic representation of the earth's surface (or part of it)
choropleth map: a map that uses graded differences in shading or color or the placing of symbols inside defined areas on the map in order to indicate the average values of some property or quantity in those areas

Other hyponyms of map include chart, contour map, relief map, plat, road map, sketch map, weather chart, weather map.

map (noun)	choropleth map (noun)
a diagrammatic representation of the earth's surface (or part of it)	a map that uses graded differences in shading or color or the placing of symbols inside defined areas on the map in order to indicate the average values of some property or quantity in those areas
(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)	choropleth map (verb)
to establish a mapping (of mathematical elements or sets)
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