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| UNBEND | To cast off or untie. (See BEND.) |
| UNION | The upper inner corner of an ensign. The rest of the flag is
called the fly. The union of the U.S. ensign
is a blue field with white stars, and the fly is composed
of alternate white and red stripes.
Union-down. The situation of a flag when it is hoisted upside down, bringing the union down instead of up. Used as a signal of distress. Union-jack. A small flag, containing only the union, without the fly, usually hoisted at the bowsprit-cap. |
| UNMOOR | To heave up one anchor so that the vessel may ride at a single anchor. (See MOOR.) |
| UNSHIP | (See SHIP.) |
| UVROU. | (See EUVROU.) |
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