noun
every state; every province
Refers to all states or provinces collectively, often in contexts like the United States or historical Japanese provinces.
アメリカの州々にはそれぞれ独自の法律がある。
Each state in the United States has its own laws.
江戸時代、日本の州々は藩によって統治されていた。
During the Edo period, the provinces of Japan were governed by feudal domains.
各州 means 'each state' individually, while 州々 emphasizes 'all states' collectively.
Reduplication of 州 (しゅう, 'state/province') with the iteration mark 々, forming a plural-like noun meaning 'every state/province'.