open door

American  

noun

1. the policy of admitting people of all nationalities or ethnic groups to a country upon equal terms, as for immigration.

2. the policy or practice of trading with all nations on an equal basis.

3. admission or access; unrestricted opportunity.

   His experience had given him an open door to success in his field.

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open door British  

noun

1. a policy or practice by which a nation grants opportunities for trade to all other nations equally

2. free and unrestricted admission

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adjective

1. open to all; accessible

2. (in industrial relations) designating a policy of management being prepared to talk to workers in the office at any time

Other Word Forms

• open-door
  adjective

Etymology

Origin of open door

First recorded in 1520–30

Example Sentences

See Examples For:

open door

If that room down the hall has glass walls and an open door, then it looks like shared space.

From The Wall Street Journal ● Jun. 14, 2026

And wow did they waltz right through that open door.

From Slate ● May 23, 2026

"The talks in Pakistan did not deliver a deal, but they did something just as important. They kept the door open. And in markets, an open door is often enough," he added.

From Barron's ● Apr. 14, 2026

“We’re asking for accessibility, not an open door to cause harm.”

From Salon ● Mar. 1, 2026

She stops near the open door of the cafeteria.

From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko