noun, verb, -niced, -nic⋅ing.| 1. | Architecture.
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| 2. | any of various other ornamental horizontal moldings or bands, as for concealing hooks or rods from which curtains are hung or for supporting picture hooks. |
| 3. | a mass of snow, ice, etc., projecting over a mountain ridge. |
| 4. | to furnish or finish with a cornice. |