line [lines]+(geometry: infinite one-dimensional figure)noun[UK: laɪn] [US: ˈlaɪn]
straight line+(line with no curvature)noun[UK: streɪt laɪn] [US: ˈstreɪt ˈlaɪn]
ray [rays]+(mathematics: line extending indefinitely in one direction from a point)noun[UK: reɪ] [US: ˈreɪ]
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