from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To release from or as if from moorings.
- transitive v. Nautical To release (a ship) from all but one anchor.
- intransitive v. To cast off moorings.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To unfix or unsecure (a moored boat).
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To cause to ride with one anchor less than before, after having been moored by two or more anchors.
- transitive v. To loose from anchorage. See moor, v. t.
- intransitive v. To weigh anchor.
from The Century Dictionary and Cyclopedia
- Nautical, to bring to the state of riding with a single anchor, after having been moored by two or more cables.
- To loose from anchorage or from moorings, literally or figuratively.
- To loose from moorings; weigh anchor.
un- + moor (Wiktionary)