| a. | 1. | Made of jet, or like jet in color. | |||
| n. | 1. | ||||
| 1. | (Arch.) A part of a building that jets or projects beyond the rest, and overhangs the wall below. | ||||
| 2. | A wharf or pier extending from the shore. | ||||
| 3. | (Hydraul. Engin.) A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor; a mole;
| ||||
| v. i. | 1. | To jut out; to project. | |||
| Noun | 1. | jetty - a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away |