insider vs business executive

insider and business executive both are nouns.

Word	Noun	Adjective	Verb	Adverb
insider	Yes	No	No	No
business executive	Yes	No	No	No

As nouns, business executive is a hypernym of insider; that is, business executive is a word with a broader meaning than insider:

insider: an officer of a corporation or others who have access to private information about the corporation's operations
business executive: an executive in a business corporation

Other hypernyms of insider include corporate executive.

insider (noun)	business executive (noun)
an officer of a corporation or others who have access to private information about the corporation's operations	an executive in a business corporation