How can the word 'open' be expressed differently in Swift?

In Swift, the word open is an access modifier that allows a class or its methods to be accessible and overridable outside the module where they are declared.

If we talk about synonyms or alternative expressions for open in the context of Swift, the following can be considered:

• public — also open access, but with a restriction: classes and methods with the public modifier cannot be overridden outside the module.
• accessible or exposed — common English words describing accessibility.

In Swift programming, there is no specific synonym for open as a keyword, but it generally means "open for extension and use."

If the question concerns lexical synonyms of the word "open" in English, they could be: "unlocked", "available", "accessible", "unsealed".