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definitions

king's English

noun
  1. standard, educated, or correct English speech or usage, especially of England.

Origin of king's English

First recorded in 1545–55
Also called, when a queen is sovereign, queen's English.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for king's english

King's English

noun
  1. (esp when the British sovereign is male) standard Southern British English
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012