repertory vs theater company

repertory and theater company both are nouns.

Word	Noun	Adjective	Verb	Adverb
repertory	Yes	No	No	No
theater company	Yes	No	No	No

As nouns, theater company is a hypernym of repertory; that is, theater company is a word with a broader meaning than repertory:

repertory (noun)	theater company (noun)
a storehouse where a stock of things is kept	a company that produces plays
the entire range of skills or aptitudes or devices used in a particular field or occupation
a collection of works (plays, songs, operas, ballets) that an artist or company can perform and do perform for short intervals on a regular schedule
a theatrical company that performs plays from a repertoire