umbrella |
| noun
- Cloth-covered frame used for protection against rain or sun.
- Generally, anything that provides protection. (The fighters provide a defensive air umbrella over the battle group.)
- Something that covers a wide range of concepts, ideas, purposes, etc. (The test facility was established under the umbrella of the company's quality program.)
- The main body of a jellyfish, excluding the tentacles.
| | urchin |
| noun
- A mischievous child.
- street kid, a child from from a poor neighborhood.
- (archaic) A hedgehog.
| uropod |
| noun - (anatomy) either of the two posterior abdominal appendages of the lobster, shrimp and some other crustaceans
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