a baseball player on the team at bat who is on base (or attempting to reach a base)

a person who runs as a sport or hobby

a person who is employed to deliver messages or documents

fish of western Atlantic: Cape Cod to Brazil

device consisting of the parts on which something can slide along

a type of long and narrow rug that is typically used to cover hallways, entryways, or other narrow spaces in a home or building

a trained athlete who competes in foot races

(football) the player who is carrying (and trying to advance) the ball on an offensive play

a horizontal branch from the base of plant that produces new plants from buds at its tips