Ply

noun

1. A layer of material.

   "two-ply toilet paper"

2. A strand that, twisted together with other strands, makes up rope or yarn.
3. Short for plywood.
4. In two-player sequential games, a "half-turn" or a move made by one of the players.

   "He proposed to build Deep Purple, a super-computer capable of 24-ply look-ahead for chess."

5. A condition, a state.