Ray or RAY may refer to:

Fish

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Science and mathematics

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  • Half-line (geometry) or ray, half of a line split at an initial point
  • Directed half-line or ray, half of a directed or oriented line split at an initial point
  • Ray (graph theory), an infinite sequence of vertices such that each vertex appears at most once in the sequence and each two consecutive vertices in the sequence are the two endpoints of an edge in the graph
  • Ray (optics), an idealized narrow beam of light
  • Ray (quantum theory), an equivalence class of state-vectors representing the same state

Arts and entertainment

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Music

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Fictional characters and mascots

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Other media

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People

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Places

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Iran

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Russia

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United Kingdom

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United States

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Elsewhere

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Technology

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Transportation

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Vehicles

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Other uses in transportation

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Other uses

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See also

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