pillar vs architecture

pillar and architecture both are nouns.

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

pillar (noun)	architecture (noun)
(architecture) a tall vertical cylindrical structure standing upright and used to support a structure	the profession of designing buildings and environments with consideration for their esthetic effect
a vertical cylindrical structure standing alone and not supporting anything (such as a monument)	an architectural product or work
a fundamental principle or practice	(computer science) the structure and organization of a computer's hardware or system software
a prominent supporter	the discipline dealing with the principles of design and construction and ornamentation of fine buildings
anything that approximates the shape of a column or tower