the policy of admitting people of all nationalities or ethnic groups to a country upon equal terms, as for immigration.
the policy or practice of trading with all nations on an equal basis.
admission or access; unrestricted opportunity: His experience had given him an open door to success in his field.
Origin of open door
First recorded in 1520–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for open doorsgenerosity
a policy or practice by which a nation grants opportunities for trade to all other nations equally
free and unrestricted admission
open to all; accessible
(in industrial relations) designating a policy of management being prepared to talk to workers in the office at any time
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
see open the door to.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.