(Jamaica) A mythical figure in Jamaican folklore, said to protect bodies of water and the people who pay her tribute. River Mumma is an African retention in the vein of protective water spirits like Mami Wata or the Orisha Yemoja. When it comes to crossing a river she inhabits, she allows those with good intentions to cross her waters; the others either turn back or drown.

The name of many rivers, mostly in the United States, but also in Canada and South Africa. / An unincorporated community in Henry County, Illinois, United States.

A number of rivers in Canada and the United States, including Alaska. / A community in Machin, Ontario, Canada. / A community in Anchorage, Alaska, United States.

A river in Nunavut, Canada, which flows into the Arctic Ocean. / A river in Oregon, United States, a tributary of the Columbia River.

(obsolete) capybara (Hydrochoerus hydrochaeris)

plural of river hog

The common European otter (Lutra lutra). / Lontra canadensis (North American river otter) / Lontra felina (marine otter, sea cat) / Lontra longicaudis (South American river otter)

plural of river otter

A river in eastern Ontario, Canada, which joins the Ottawa River.

(US, geography) The canonical name of the great river Mississippi.