This time we are looking on the **crossword puzzle clue** for: *Closed.*

it’s A 6 letters **crossword definition**.

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## Possible Answers:
**SHUT**.

**SHUT**.

Last seen on: –LA Times Crossword 8 Apr 21, Thursday

–USA Today Crossword – Mar 20 2021

USA Today Crossword – Sep 4 2020

### Random information on the term “Closed”:

A set is closed under an operation if performance of that operation on members of the set always produces a member of that set. For example, the positive integers are closed under addition, but not under subtraction: 1 − 2 {\displaystyle 1-2} is not a positive integer even though both 1 and 2 are positive integers. Another example is the set containing only zero, which is closed under addition, subtraction and multiplication (because 0 + 0 = 0 {\displaystyle 0+0=0} , 0 − 0 = 0 {\displaystyle 0-0=0} , and 0 × 0 = 0 {\displaystyle 0\times {0}=0} ).

Similarly, a set is said to be closed under a collection of operations if it is closed under each of the operations individually.