runoff

1 of 2

noun

run·​off ˈrən-ˌȯf 

1

: a final race, contest, or election to decide an earlier one that has not resulted in a decision in favor of any one competitor

2

: the portion of precipitation on land that ultimately reaches streams often with dissolved or suspended material

run off

2 of 2

verb

ran off; run off; running off; runs off

transitive verb

1

a

: to recite, compose, or produce rapidly

b

: to cause to be run or played to a finish

c

: to decide (a race) by a runoff

d

: carry out

2

: to drain off : draw off

3

a

: to drive off (someone, such as a trespasser)

b

: to steal (animals, such as cattle) by driving away

intransitive verb

: run away sense 1

see also run off with

Synonyms

Verb

• banish
• boot (out)
• bounce
• cast out
• chase
• dismiss
• drum (out)
• eject
• expel
• extrude
• kick out
• oust
• out
• rout
• throw out
• turf (out) [chiefly British]
• turn out

Examples of runoff in a Sentence

Verb

the dog often ran off cats and other animals that had intruded upon his owner's property

their rebellious daughter's run off because she was disciplined again

Recent Examples on the Web

Noun

This process has particularly adverse effects in the watershed, an area of land where runoff drains into a common body of water, leading to high amounts of phosphorus and nitrogen ending up in rivers, streams, and lakes, according to The Watershed Foundation. —Charlotte Minnick, Hartford Courant, 20 Dec. 2024

Regarding contaminated water runoff from the mine site, the company said its internal monitoring of contamination stretching from a historic smelter site known as Helvetia, on the current Copper World property, was detected downhill but fell to background levels after 8 miles. —Brandon Loomis, The Arizona Republic, 19 Dec. 2024

Verb

Advertisement Most people figured the girls had run off. —Jessica Garrison, Los Angeles Times, 18 Dec. 2024

Security camera footage shows thieves running off with packages delivered to a home or even brazenly posing as a homeowner to accept an item directly from the delivery person. —Megan Cerullo, CBS News, 11 Dec. 2024

Word History

First Known Use

Noun

1867, in the meaning defined at sense 2

Verb

1680, in the meaning defined at transitive sense 1a

Kids Definition

runoff

1 of 2 noun

run·​off ˈrən-ˌȯf 

1

: a final contest or election to decide an earlier one that has not given the victory to one competitor

2

: water from rain or snow that flows over the surface of the ground and finally into streams

run off

2 of 2 verb

ˈrən-ˈȯf,

ˌrən-

1

: to produce rapidly

2

: to decide by a runoff

3

: to drive away

4

: run away sense 1