What is "boarding pike"

Boarding \Board"ing\, n.

1. (Naut.) The act of entering a ship, whether with a hostile or a friendly purpose.

   Both slain at one time, as they attempted the boarding of a frigate.
   --Sir F. Drake.

2. The act of covering with boards; also, boards, collectively; or a covering made of boards.

3. The act of supplying, or the state of being supplied, with regular or specified meals, or with meals and lodgings, for pay.

   Boarding house, a house in which boarders are kept.

   Boarding nettings (Naut.), a strong network of cords or ropes erected at the side of a ship to prevent an enemy from boarding it.

   Boarding pike (Naut.), a pike used by sailors in boarding a vessel, or in repelling an attempt to board it.
   --Totten.

   Boarding school, a school in which pupils receive board and lodging as well as instruction.