ALL meanings of bridgeboard
bridge·board
B b - noun bridgeboard a board on both sides of a staircase that is cut to support the treads and risers 3
- noun bridgeboard any of the notched boards holding the treads and risers of a staircase; string 3
- noun bridgeboard a notched board serving as a string or carriage for a stair. 1
- noun bridgeboard (architecture) A notched board to which the treads and risers of the steps of wooden stairs are fastened. 0
- noun bridgeboard A board or plank used as a bridge. 0