| Answer | Crossword Clue |
|---|---|
| DODECAGON | Twelve-sided figure |
| dodecahedron | (Greek) a twelve-sided solid figure |
| dodecahedra | DODECAHEDRON, (Greek) a twelve-sided solid figure |
| dodecahedrons | DODECAHEDRON, (Greek) a twelve-sided solid figure |
| dodecahedral | relating to a dodecahedron, a twelve-sided solid figure |
| thrupenny | a twelve-sided British coin, obsolete since 1972 |
