. | 1. | something that passes everywhere or provides a universal means of passage. |
| 2. | a master key; skeleton key. |
| 3. | an ornamental mat for a picture. |
| 4. | a method of framing in which a piece of glass is placed over a picture and is affixed to a backing by means of adhesive strips of paper or other material pasted over the edges. |
| 5. | paper prepared for this purpose. |
