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RY

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Ry is an abbreviation for railway and relay.

Ry, RY, or ry may also refer to:

People

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First name

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Surname

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Places

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Denmark

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France

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Science and technology

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  • Rydberg constant, unit of energy used in quantum physics related to the ground state energy of the hydrogen atom
  • Consolidated RY, former cargo aircraft of the U.S. Navy
  • RY Sagittarii, star in the constellation Sagittarius
  • RY Tauri, star in the constellation Taurus
  • RY (test signal), character string used to test five-level teleprinter channels

Business and finance

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Other

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See also

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