runner

noun

1.
someone who imports or exports without paying duties
2.
someone who travels on foot by running
Derived from:
run
3.
a person who is employed to deliver messages or documents
4.
a baseball player on the team at bat who is on base (or attempting to reach a base)
5.
a horizontal branch from the base of plant that produces new plants from buds at its tips
6.
a trained athlete who competes in foot races
Derived from:
run
7.
(football) the player who is carrying (and trying to advance) the ball on an offensive play
8.
a long narrow carpet
9.
device consisting of the parts on which something can slide along
10.
fish of western Atlantic: Cape Cod to Brazil