A corona is a type of plasma "atmosphere" of the Sun or other celestial body, extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph. The Greek root of the word Corona means...

The word Korona is a generic term of some Slavic languages and of the Hungarian language for a crown. As such it might refer to a variety of meanings:

Korona Kielce a Polish football club based in Kielce, Poland

The Crown, a term used to separate the government authority and property of the state in a kingdom

Saint Corona

The Austro-Hungarian currency Austro-Hungarian krone

The Hungarian currency Hungarian korona

Korona, a term used to differentiate between both parts of the Polish-Lithuanian Commonwealth

Korona - village in Poland