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Immutable

Immutable means that an object cannot be altered after it is created. In Python, strings and tuples are examples of immutable objects.

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Immutable objects cannot change their values or state once they are created.
Strings in Python are immutable; any operation that modifies a string creates a new string.
Tuples are another example of immutable objects in Python, meaning their elements cannot be changed after creation.
When passing immutable objects as parameters to functions, the original object remains unchanged even if the function attempts to modify it.
String slicing returns a new string because strings are immutable.