Definition of "open door" []

• Unhindered opportunity; free access. (noun)
• Admission to all on equal terms. (noun)
• A policy whereby a nation trades with all other nations on equal terms. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "You gaze out of the open door at a wake of bubbling cow-parsley and the green depths of a hedge in May."
• "Standing at the open door were Headmaster Cromwell, his goon Mr. White, and our housemother Mrs. Lattimer, clutching at the high neck of her blouse."
• "Outside the open door stood matched pairs of fabric-and-metal slings, evidently waiting for the rowers to return."