Dictionary definition · run
noun
- a score in baseball made by a runner touching all four bases safely"the Yankees scored 3 runs in the bottom of the 9th"
- the act of testing something"in the experimental trials the amount of carbon was measured separately"
- a race run on foot"she broke the record for the half-mile run"
- an unbroken series of events"had a streak of bad luck"
- (American football) a play in which a player attempts to carry the ball through or past the opposing team"the defensive line braced to stop the run"
- a regular trip"the ship made its run in record time"
verb
- move fast by using one's feet, with one foot off the ground at any given time"Don't run — you'll be out of breath"
- flee; take to one's heels; cut and run"If you see this man, run!"
- stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point"Service runs all the way to Cranbury"
- direct or control; projects, businesses, etc."She is running a relief operation in the Sudan"
- have a particular form"the story or argument runs as follows"
- move along, of liquids"Water flowed into the cave"
Source: Open English WordNet (CC BY 4.0).