Meanings

to (try to) act like a big-shot

Kagawa Prefecture (Shikoku)

Sanzu River (Japanese Buddhist equivalent of the River Styx)

mountains and rivers

Sichuan (China)

stream

Kanagawa Prefecture (Kanto area)

Ishikawa Prefecture (Hokuriku area)

riverside

along the river

senryū

riverbank

rapids

mountain stream

river raised above the surrounding land

canal

river surface

Milky Way

rivers

upper reaches of a river