Definition of open door
1
: a recognized right of admittance : freedom of access
also
: a policy providing such freedom
2
: a policy giving opportunity for commercial relations with a country to all nations on equal terms
Keep scrolling for more
Test Your Vocabulary
Who Knew?
-
- What is a ruelle?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
The first known use of open door was in 1526
See more words from the same year