runner

1a : one that runs : racer

b : base runner

c : ballcarrier

2a : messenger

b : one that smuggles or distributes illicit or contraband goods (such as drugs, liquor, or guns)

4a : either of the longitudinal pieces on which a sled or sleigh slides

b : the part of a skate that slides on the ice : blade

c : the support of a drawer or a sliding door

5a : an elongated horizontal stem arising from the base of a plant especially : stolon sense 1a

b : a plant (such as a strawberry) that forms or spreads by means of runners

c : a twining vine (such as a scarlet runner bean)

6a : a long narrow carpet for a hall or staircase

b : a narrow decorative cloth cover for a table or dresser top