move with a curving trajectory

the ball arced across the room

form an electric arc

the outage was caused by a bad switch that arced

I have no idea whether they touched the power lines or arced

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 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

(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