open door

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.
Origin
1520-30
Related forms
open-door, adjective
British Dictionary definitions for open doors

open door

noun
1.
a policy or practice by which a nation grants opportunities for trade to all other nations equally
2.
free and unrestricted admission
adjective
3.
open to all; accessible
4.
(in industrial relations) designating a policy of management being prepared to talk to workers in the office at any time
Idioms and Phrases with open doors

open doors