1) Anglicism 2) Britishism 3) Expression 4) Formulation 1) Anglicism 2) Britishism 
• (n.) A word, phrase, or idiom peculiar to Great Britain; any manner of using a word or words that is peculiar to Great Britain.
An expression or word that developed in Britain after the American colonies separated politically fr
Brit'i·cism noun A word, phrase, or idiom peculiar to Great Britain; any manner of using a word or words that is peculiar to Great Britain. 
a word, idiom, or phrase characteristic of or restricted to British English, esp. as compared with American English, as lift compared with elevator or in hospital with in the hospital.