[1] : The Collaborative International Dictionary of English v.0.48

runner \run"ner\, n. from run.
   1. one who, or that which, runs; a racer.
      1913 webster

   2. a detective. slang, eng. --dickens.
      1913 webster

   3. a messenger. --swift.
      1913 webster

   4. a smuggler. colloq. --r. north.
      1913 webster

   5. one employed to solicit patronage, as for a steamboat,
      hotel, shop, etc. cant, u.s.
      1913 webster

   6. bot. 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.
      1913 webster

   7. the rotating stone of a set of millstones.
      1913 webster

   8. naut. a rope rove through a block and used to increase
      the mechanical power of a tackle. --totten.
      1913 webster

   9. one of the pieces on which a sled or sleigh slides; also
      the part or blade of a skate which slides on the ice.
      1913 webster

   10. founding
       a 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.
       b a trough or channel for leading molten metal from a
           furnace to a ladle, mold, or pig bed.
           1913 webster

   11. the movable piece to which the ribs of an umbrella are
       attached.
       1913 webster

   12. zool. 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.
       1913 webster

   13. zool. any cursorial bird.
       1913 webster

   14. mech.
       a a movable slab or rubber used in grinding or
           polishing a surface of stone.
       b a tool on which lenses are fastened in a group, for
           polishing or grinding.
           1913 webster
see also:
run elagatis pinnulatus skipjack shoemaker yellowtail 

[2] : WordNet (r) 2.0

runner
     n 1: someone who imports or exports without paying duties syn: smuggler,
           contrabandist, moon curser, moon-curser
     2: someone who travels on foot by running
     3: a person who is employed to deliver messages or documents;
        "he sent a runner over with the contract"
     4: a baseball player on the team at bat who is on base or
        attempting to reach a base syn: base runner
     5: a horizontal branch from the base of plant that produces new
        plants from buds at its tips syn: stolon, offset
     6: a trained athlete who competes in foot races
     7: a long narrow carpet
     8: device consisting of the parts on which something can slide
        along
     9: fish of western atlantic: cape cod to brazil syn: blue
        runner, caranx crysos
see also:
smuggler contrabandist moon curser moon-curser base runner stolon 
offset blue runner caranx crysos 

[3] : Moby Thesaurus II by Grady Ward, 1.0

111 moby thesaurus words for "runner":
   hermes, iris, jehu, mercury, paul revere, pheidippides, skimobile,
   sno-cat, agent, appendage, arm, bine, blade, bough, branch,
   branchedness, branchiness, burgeon, carrier, commissionaire,
   conductor, contrabandist, courier, creeper, deadwood,
   diplomatic courier, driver, emissary, engineer, estafette, express,
   flagellum, flier, fork, frond, functionary, gate, go-between, goer,
   gofer, gunrunner, hand, handler, hell-driver, horse racer, hummer,
   hurdler, hustler, imp, ingate, jockey, jogger, joint, leg, limb,
   link, lobe, lobule, manipulator, member, message-bearer, messenger,
   nuncio, offshoot, operant, operative, operator, organ, page, pilot,
   pinion, post, postboy, postrider, racer, ramage, ramification,
   rumrunner, sarment, scion, scorcher, shoot, sizzler, sled, sleigh,
   slip, smuggler, snowmobile, spear, speed demon, speeder, spray,
   sprig, sprit, sprout, sprue, spur, steersman, stem, stepper,
   stolon, sucker, switch, tail, tedge, tendril, thallus, turfman,
   twig, weasel, wing

Runner >> R Words
Runner, definition of term: Runner
runner_pag1.html

Road Runner >> R Words
Road Runner, definition of term: Road Runner
road+runner_pag1.html

Rainbow Runner >> R Words
Rainbow Runner, definition of term: Rainbow Runner
rainbow+runner_pag1.html