Answer:

oka

AnswerCrossword Clue
OKATrappist cheese
OKAVolga tributary
OKARiver to the Volga
OKAVolga feeder
OKARussian river
OKAThe Moskva is one of its tributaries
OKARussian river.
OKA950-mile river on which Gorki is situated.
OKARiver in Central Russia.
OKALargest western tributary of Volga.
OKARussian river running through Orel sector.
OKARiver joining the Volga at Gorki.
OKAOrel's river.
OKATributary of the Volga.
OKA950-mile tributary of the Volga.
OKAVolga tributary, 950 miles long.
OKAGorki's river.
OKAVolga tributary.
OKARiver into the Volga.
OKAOne of Gorki's rivers.
OKARiver into the Volga at Gorki.
OKAGorky's river.
OKARiver at Gorki.
OKAWeight in Turkey.
OKATurkish weight.
OKATula's river.
OKATurkish weight
OKAOrel's river
OKARiver to Volga
OKASoviet river
OKACanadian cheese
OKAU.S.S.R. river
OKARiver to Gorki
OKATurkish unit of weight
OKAGorky river
OKATrappist monks' cheese
OKAOrel's stream
OKAVolga branch
OKAGorki's river
OKAVolga tributary at Gorki