TURNCOAT


Meaning of TURNCOAT in English

turn ‧ coat /ˈtɜːnkəʊt $ ˈtɜːrnkoʊt/ BrE AmE noun [countable]

someone who stops supporting a political party or group and joins the opposing side:

Casson was publicly criticized as a turncoat and a traitor.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.