noun, verb, -tised, -tis⋅ing.| 1. | a notch, hole, groove, or slot made in a piece of wood or the like to receive a tenon of the same dimensions. |
| 2. | a deep recess cut into wood for any of several other purposes, as for receiving a mortise lock. |
| 3. | Printing. a space cut out of a plate, esp. for the insertion of type or another plate. |
| 4. | to secure with a mortise and tenon. |
| 5. | to cut or form a mortise in (a piece of wood or the like). |
| 6. | to join securely. |
| 7. | Printing.
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