architecture vs spandrel

architecture and spandrel both are nouns.

Word	Noun	Adjective	Verb	Adverb
architecture	Yes	No	No	No
spandrel	Yes	No	No	No

architecture (noun)	spandrel (noun)
the profession of designing buildings and environments with consideration for their esthetic effect	an approximately triangular surface area between two adjacent arches and the horizontal plane above them
an architectural product or work
(computer science) the structure and organization of a computer's hardware or system software
the discipline dealing with the principles of design and construction and ornamentation of fine buildings