\ ˈrən-ˌin How to pronounce run-in (audio) \

Definition of run-in

 (Entry 1 of 2)

1 British : the final part of a race or racetrack
3 : something inserted as a substantial addition in copy or typeset matter

run in

ran in; run in; running in; runs in

Definition of run in (Entry 2 of 2)

transitive verb

1a : to insert as additional matter
b : to make (typeset matter) continuous without a paragraph or other break
2 : to arrest for a usually minor offense
3 chiefly British : to break in (a new machine) gradually by careful operation

intransitive verb

: to pay a casual visit

Keep scrolling for more

Examples of run-in in a Sentence

Verb I just thought I'd run in and pick up my package. if we catch you shoplifting again, we're going to run you in
Recent Examples on the Web: Verb Taylor Ward broke up Greinke's bid for a perfect game and scored the Angels' first run in the sixth. Greg Beacham, Houston Chronicle, "Angels rally twice to beat Astros in 10 innings," 1 Aug. 2020 Coonrod allowed a run in Thursday night’s 12-7, 10-inning loss to the Padres. Henry Schulman,, "Giants send reliever Sam Coonrod to injured list, recall lefty Sam Selman," 31 July 2020 For teams expecting a deep run in the playoffs, such as the Lakers, Clippers, Raptors and Bucks, their approach may be different than a team trying to improve their seeding or get into the playoffs. Jeff Zillgitt, USA TODAY, "Life inside the bubble with NBA players: Golf, fishing and shotgunning beers," 12 July 2020 The long layoff, combined with unpredictable circumstances and many players around the league who opted to sit out of the restart, could open the door for some teams to make a surprising run in the playoffs. Dallas News, "Kenny ‘The Jet’ Smith says Mavericks have a great opportunity to ‘really shine’ in NBA’s restart," 8 July 2020 Barring injury, the 24-year-old Mahomes and Kansas City could be just starting a dominant run in the NFL. oregonlive, "NFL stars react to Patrick Mahomes’ historic $503 million contract," 7 July 2020 Maybe the 48-year-old former champion has another great run in him at Kentucky. Jason Hoffman, The Enquirer, "NASCAR at Kentucky Speedway: Picks to win ARCA, Truck, XFinity, Cup Series races this week," 5 July 2020 Coach Nate McMillan believes Oladipo will be get some run in Orlando before figuring out the next move. J. Michael, The Indianapolis Star, "Victor Oladipo, Pacers still have time to determine his playing status for Orlando bubble," 1 July 2020 Production of the Mazda 2–based subcompact will cease before July, ending the nameplate's 14-year run in our market and leaving the C-HR crossover as Toyota's sole subcompact offering. Beth Nichols, Car and Driver, "Toyota Confirms Yaris Sedan, Hatchback Are Dead to U.S.," 24 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'run-in.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of run-in


1799, in the meaning defined at sense 1


1888, in the meaning defined at sense 1b

Keep scrolling for more

Learn More about run-in

Time Traveler for run-in

Time Traveler

The first known use of run-in was in 1799

See more words from the same year

Statistics for run-in

Cite this Entry

“Run-in.” Dictionary, Merriam-Webster, Accessed 15 Aug. 2020.

Keep scrolling for more

More Definitions for run-in


How to pronounce run in (audio)

English Language Learners Definition of run-in

informal : an angry argument


\ ˈrən-ˌin \

Kids Definition of run-in

: an angry argument

Keep scrolling for more

More from Merriam-Webster on run-in

Thesaurus: All synonyms and antonyms for run-in

Spanish Central: Translation of run-in

Nglish: Translation of run-in for Spanish Speakers

Comments on run-in

What made you want to look up run-in? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Name That Thing: Animal Edition

  • alt 5a023732e6f75
  • Name that animal:
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!