English noun: envelope |
1. | envelope (artifact) a flat (usually rectangular) container for a letter, thin package, etc. |
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| Broader (hypernym) | container |
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| Narrower (hyponym) | window envelope |
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2. | envelope (artifact) any wrapper or covering |
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| Broader (hypernym) | wrap, wrapper, wrapping |
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3. | envelope (shape) a curve that is tangent to each of a family of curves |
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| Broader (hypernym) | curve, curved shape |
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4. | envelope (object) a natural covering (as by a fluid) |
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| Samples | The spacecraft detected an envelope of gas around the comet.
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| Broader (hypernym) | cover, covering, natural covering |
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5. | envelope (attribute) the maximum operating capability of a system (especially an aircraft) |
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| Samples | Test pilots try to push the envelope.
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| Broader (hypernym) | operating capability, performance capability |
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6. | envelope (artifact) the bag containing the gas in a balloon |
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| Synonyms | gasbag |
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| Broader (hypernym) | bag |
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| Part meronym | balloon |
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