run

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To move swiftly on foot so that both or all feet are not on the ground during each stride.
• intransitive verb To retreat rapidly; flee.
• intransitive verb Informal To depart; leave.
• intransitive verb To migrate, especially to move in a shoal in order to spawn. Used of fish.
• intransitive verb To move without hindrance or restraint.
• intransitive verb To move or go quickly or hurriedly.
• intransitive verb To go when in trouble or distress.
• intransitive verb To make a short, quick trip or visit.
• intransitive verb To take part in a race or contest by running.
• intransitive verb To compete in a race for elected office.
• intransitive verb To finish a race or contest in a specified position.
• intransitive verb To move freely, as on wheels.
• intransitive verb To travel over a regular route.
• intransitive verb Nautical To sail or steer before the wind or on an indicated course.
• intransitive verb To flow, especially in a steady stream.
• intransitive verb To melt and flow.
• intransitive verb To emit pus, mucus, or serous fluid.
• intransitive verb To be wet or covered with a liquid.
• intransitive verb To spread or dissolve, as dyes in fabric.
• intransitive verb To have dye spread or dissolve.
• intransitive verb To extend, stretch, or reach in a certain direction or to a particular point.
• intransitive verb To extend, spread, or climb as a result of growing.
• intransitive verb To become known or prevalent rapidly in or over an area.
• intransitive verb To unravel along a line.
• intransitive verb To be valid or in effect, as in a given area.
• intransitive verb To be present as a valid accompaniment.
• intransitive verb To accumulate or accrue.
• intransitive verb To be in operation; function or work.
• intransitive verb To pass; elapse.
• intransitive verb To tend to persist or recur.
• intransitive verb To pass into or become subject to a specified condition.
• intransitive verb To take a particular form, order, or expression.
• intransitive verb To tend or incline.
• intransitive verb To occupy or exist in a certain range.
• intransitive verb To be presented or performed.
• intransitive verb To be published or broadcast, especially as news.
• intransitive verb To travel over on foot at a pace faster than a walk.
• intransitive verb To cause (an animal) to move quickly or rapidly.
• intransitive verb To allow to move without restraint.
• intransitive verb To hunt or pursue; chase.