1.
state, province
An administrative division of a country, particularly used for American states.
2.
continent (archaic)
A large landmass, used in compound words.
州 is primarily used for "state" in countries like the USA, or "province" in other countries.
Usage
USAGE (continent sense):
In compound words, 州 can mean "continent":
- 大陸 vs 州: both can mean continent
- ヨーロッパ州 / 欧州 (Europe)
- アジア州 / 亜州 (Asia - formal, mainly in proper nouns and financial contexts)
Cultural note
Japan uses 県 (prefecture), 都 (Tokyo), 道 (Hokkaido), 府 (Osaka/Kyoto) for administrative divisions, not 州.