architecture vs crow step

architecture and crow step both are nouns.

Word	Noun	Adjective	Verb	Adverb
architecture	Yes	No	No	No
crow step	Yes	No	No	No

architecture (noun)	crow step (noun)
the profession of designing buildings and environments with consideration for their esthetic effect	(architecture) a step on the top of a gable wall
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