| open door | |
| —n | |
| 1. | a policy or practice by which a nation grants opportunities for trade to all other nations equally |
| 2. | free and unrestricted admission |
| —adj | |
| 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 |
| a chattering or flighty, light-headed person. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |