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# closed

Yet each man kills the thing he loves from all let this be heard some does it with a bitter look some with a flattering word the coward does it with a kiss the brave man with the sword.
Oscar Wilde
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## English

### Pronunciation

closed (not comparable)
 Positive closed Superlativenone (absolute)
1. inaccessible; not open
2. non public (as in closed source)
3. (mathematics)
1. (Topology) a set is closed if its complement is open
2. (Algebra) a set is closed under an operation if the outcome for every argument is also in the set itself. (e.g. $\forall x,y \in Z:\, x + y \in Z$)

#### Translations

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

### Verb

closed

1. Simple past tense and past participle of close.

## Elsewhere on the web

### En-De

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