Dictionary definition for: Runner
1. (n) someone who imports or exports without paying duties
2. (n) someone who travels on foot by running
3. (n) a person who is employed to deliver messages or documents; "he sent a runner over with the contract"
4. (n) a baseball player on the team at bat who is on base (or attempting to reach a base)
5. (n) a horizontal branch from the base of plant that produces new plants from buds at its tips
6. (n) a trained athlete who competes in foot races
8. (n) device consisting of the parts on which something can slide along
9. (n) fish of western Atlantic: Cape Cod to Brazil
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