held in strict privacy; not open to the press or the public: a closed-door strategy meeting of banking executives.
Origin of closed-door
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
private; barred to members of the publica closed-door meeting
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
An obstacle or restriction, as in There are no closed doors in the new field of gene therapy. [First half of 1900s]
close one's doors. See close down. Also see behind closed doors; close the door.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.