Briticism :: Briticism (n.) A word, phrase, or idiom peculiar to Great Britain; any manner of using a word or words that is peculiar to Great Britain..
British :: British (a.) Of or pertaining to Great Britain or to its inhabitants; -- sometimes restricted to the original inhabitants.
British :: British (n. pl.) People of Great Britain.
Britisher :: Britisher (n.) An Englishman; a subject or inhabitant of Great Britain, esp. one in the British military or naval service..