area vs footprint

area and footprint both are nouns.

Word	Noun	Adjective	Verb	Adverb
area	Yes	No	No	No
footprint	Yes	No	No	No

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

Other hyponyms of area include acreage, land area, erasure, blank space, place, space, space, balk, baulk, plane section, section.

area (noun)	footprint (noun)
a part of a structure having some specific characteristic or function	the area taken up by some object
the extent of a 2-dimensional surface enclosed within a boundary	a mark of a foot or shoe on a surface
a part of an animal that has a special function or is supplied by a given artery or nerve	a trace suggesting that something was once present or felt or otherwise important
a subject of study
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
a particular environment or walk of life