British EnglishAmerican EnglishGeneralneutral
- Fully open; with no barriers, closures, or obstructions (literal physical opening).
British EnglishAmerican EnglishGeneralinformalneutral
- Exposed or unprotected and therefore vulnerable to attack, criticism, or scrutiny.
- Completely revealed or disclosed; laid bare.
British EnglishAmerican EnglishGeneralneutral
- Lacking restrictions or controls; unrestricted, available, or accessible to many (e.g., markets, competitions, or spaces).