noun Sput·nik \ˈspu̇t-nik, ˈspət-, ˈspüt-\

Definition of Sputnik

  1. :  any of a series of earth-orbiting satellites launched by the Soviet Union beginning in 1957

Origin and Etymology of sputnik

Russian, literally, traveling companion, from s, so with + put' path

First Known Use: 1957

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