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   arc

   /ɑːk/

   noun

   • 1. a part of a curve, especially a part of the circumference of a circle: "the point where a tangential line touches the arc of a circle"
   • ▪ a shape or structure resembling an arc: "the huge arc of the sky"
   • ▪ a curving trajectory: "he swung his torch in a wide arc"
   • ▪ indicating the inverse of a trigonometrical function.
   • 2. a luminous electrical discharge between two electrodes or other points: "modern welding generators are designed so that there is a high voltage for striking the arc"
   • 3. (in a novel, play, or film) the development or resolution of the narrative or principal theme: "his transformation provides the emotional arc of the story"

   verb

   • 1. move with a curving trajectory: "the ball arced across the room"
   • 2. form an electric arc: "the outage was caused by a bad switch that arced"

   Word Origin late Middle English (denoting the path of a celestial object, especially the sun, from horizon to horizon): via Old French from Latin arcus ‘bow, curve’.

   Scrabble Points: 5

   • A

     1

   • R

     1

   • C

     3

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