composer vs Tchaikovsky

composer and Tchaikovsky both are nouns.

Word	Noun	Adjective	Verb	Adverb
composer	Yes	No	No	No
Tchaikovsky	Yes	No	No	No

composer (noun)	Tchaikovsky (noun)
someone who composes music, usually as a profession	important Russian composer whose works are noted for their expressive melodies (1840-1893)