noun

• (US) A place to pull off a road.
  "When towing a trailer, use the turnouts to let faster traffic pass."
• (rail transport, chiefly US) A place where moveable rails allow a train to switch tracks; a set of points.
  "An article published recently in our associated weekly contemporary, The Railway Gazette, dealt at some length with the differences in construction and operation between civil and military railways, and explained that points and crossings are more commonly termed "turnouts" in military parlance."
• (dated) A quitting of employment for the purpose of forcing increase of wages; a strike.
• (dated) A striker.
  "Meanwhile on the eighteenth a party of soldiers dispersed a crowd in Over Darwen, and the following day a detachment came to protect the Hargreaves' large mill at Accrington, where one of the partners, anticipating a visit from the turnouts, had sworn in several hundred of the workpeople as special constables."