Definition of runner

• n. - One who, or that which, runs; a racer.
• n. - A detective.
• n. - A messenger.
• n. - A smuggler.
• n. - One employed to solicit patronage, as for a steamboat, hotel, shop, etc.
• n. - A slender trailing branch which takes root at the joints or end and there forms new plants, as in the strawberry and the common cinquefoil.
• n. - The rotating stone of a set of millstones.
• n. - A rope rove through a block and used to increase the mechanical power of a tackle.
• n. - One of the pieces on which a sled or sleigh slides; also the part or blade of a skate which slides on the ice.
• n. - A horizontal channel in a mold, through which the metal flows to the cavity formed by the pattern; also, the waste metal left in such a channel.
• n. - A trough or channel for leading molten metal from a furnace to a ladle, mold, or pig bed.
• n. - The movable piece to which the ribs of an umbrella are attached.
• n. - A food fish (Elagatis pinnulatus) of Florida and the West Indies; -- called also skipjack, shoemaker, and yellowtail. The name alludes to its rapid successive leaps from the water.
• n. - Any cursorial bird.
• n. - A movable slab or rubber used in grinding or polishing a surface of stone.
• n. - A tool on which lenses are fastened in a group, for polishing or grinding.