Legfelsbb
Legfelsbb appears to be a nonstandard spelling of legfelsőbb, a Hungarian adjective meaning "supreme." It is not recognized as a standalone institution or organization in standard Hungarian usage, and as a single noun it does not refer to a specific body.
In practice, legfelsőbb is used in compound expressions to denote the highest level of authority within a
In fictional, speculative, or informal contexts, Legfelsbb may be adopted as the name of a supposed supreme
If Legfelsbb is encountered in academic or journalistic text without clear context, it is reasonable to interpret