| LIGNUM | Tropical American tree also called Guaiacum whose hard, dense wood is used for ship construction (6, |
| LIGNUMVITAE | Tropical American evergreen tree of the genus Guaiacum whose hard, dense wood is used for ship const |
| ANNATTO | Tropical American tree also called the achiote whose seeds produce an orange-red dye used in food colouring |
| TEAK | Large Asian tree of the mint family, valued for its hard dense wood; Tectona grandis (4) |
| NASEBERRY | Tropical American tree also called sapodilla (9) |
| MONKEYPUZZLE | South American tree also called Araucaria and Chile pine (6,6) |
| SANDARAC | Resin obtained from a tree of NW Africa whose hard dark wood is used for decorative work (8) |
| DOGWOOD | Shrub or tree of the genus Cornus whose hard wood is used for tool handles |
| EBONY | Tree whose hard dark wood is used for cabinetwork (5) |
| IRONBARK | An Australian eucalyptus with hard, dense wood |
| YERBA | Evergreen S American tree, also called mate (5) |
| BOXELDER | North American tree also called an ash-leaved maple (3,5) |
| GUAIAC | Hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum. |
| NUTMEG | Evergreen tree whose hard seeds are used as a spice (6) |
| BABASSU | Brazilian palm tree whose hard edible nuts yield an oil used in cosmetics (7) |
| DRYDOCK | Large dock from which water can be pumped out-used for ship building (7) |
| HER | Pronoun used for ship (3) |
| GYRO | Soggy rope core used for ship's compass (4) |
| GASCARBON | Hard dense type of a non-metallic element (3-6) |
| OSMIUM | A hard, dense grey metallic element with atomic number 76 (6) |
