British people vs British

British people and British both are nouns.

Word	Noun	Adjective	Verb	Adverb
British people	Yes	No	No	No
British	Yes	Yes	No	No

As nouns, British people and British are synonyms defined as:

Other synonyms of British people include Brits.

British people (noun)	British (noun)
the people of Great Britain	the people of Great Britain

British people (adjective)	British (adjective)
	of or relating to or characteristic of Great Britain or its people or culture