Illustriousness and Upper class

Illustriousness noun - The property possessed by something or someone of outstanding importance or eminence.

Upper class and illustriousness are semantically related. In some cases you can use "Upper class" instead a noun "Illustriousness".

Upper class noun - The highest class in a society.

Illustriousness and upper class are semantically related. Sometimes you can use "Illustriousness" instead a noun phrase "Upper class".