standard vs classical

standard and classical both are nouns.

Word	Noun	Adjective	Verb	Adverb
standard	Yes	Yes	No	No
classical	Yes	Yes	No	No

standard (noun)	classical (noun)
any distinctive flag	traditional genre of music conforming to an established form and appealing to critical interest and developed musical taste
an upright pole or beam (especially one used as a support)
the ideal in terms of which something can be judged
a basis for comparison; a reference point against which other things can be evaluated
the value behind the money in a monetary system
a board measure = 1980 board feet

standard (adjective)	classical (adjective)
established or well-known or widely recognized as a model of authority or excellence	of or relating to the first significant period of a civilization, culture, area of study, etc.
conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind	of or relating to the study of the literary works of ancient Greece and Rome
conforming to the established language usage of educated native speakers	of or relating to the languages used by ancient standard authors
commonly used or supplied	well-known and long-established in form or style
regularly and widely used or sold	of or pertaining to or characteristic of the ancient Greeks and Romans, especially their art, literature, or culture
	of or relating to music in the European tradition, such as symphonies and operas
	(physics) relating to or based on concepts that preceded the theories of relativity and quantum mechanics