A game played with a shuttlecock and rackets (properly battledore and shuttlecock); a forerunner of badminton. / The racket used in this game. / (obsolete) A child's hornbook for learning the alphabet.

plural of battledore

(obsolete) An early version of the game badminton.

Alternative form of know B from a battledore

(archaic, often in the negative) To know anything at all; to have the most basic common sense or intelligence.