First Known Use: 1957
Dictionary
Sputnik
noun Sput·nik \ˈspu̇t-nik, ˈspət-, ˈspüt-\
Definition of SPUTNIK
: any of a series of earth-orbiting satellites launched by the Soviet Union beginning in 1957
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Origin of SPUTNIK
Russian, literally, traveling companion, from s, so with + put' path
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