[i-skuhch-uh
n] 
| 1. | a shield or shieldlike surface on which a coat of arms is depicted. |
| 2. | an ornamental or protective plate around a keyhole, door handle, drawer pull, light switch, etc. |
| 3. | Nautical. a panel on the stern of a vessel bearing its name and port of registry. |
| 4. | blot on one's escutcheon, a stain on one's reputation; disgrace. |