1) Any of three english rivers 2) Bedfordshire river 3) British waterway 4) British watercourse 5) British river 6) Co-feeder of the Humber 7) Either of two english rivers 8) English river to the Trent 9) English river to the wash 10) European waterway 11) European river 12) European watercourse 13) Festival in England Found on https://www.crosswordclues.com/clue/ouse
Also calleda river in E England, flowing NE to the Wash. 160 mi. (260 km) long. · a river in NE England, in Yorkshire, flowing SE to the Humber. 57 mi. (92 km) long. · a river in SE England, flowing S to the English Channel. 30 mi. (48 km) long. Found on https://www.infoplease.com/dictionary/ouse