\ ˈfil-ˌin How to pronounce fill-in (audio) \

Definition of fill-in

 (Entry 1 of 2)

: someone or something that fills in

fill in

filled in; filling in; fills in

Definition of fill in (Entry 2 of 2)

transitive verb

1 : to enrich (something, such as a design) with detail
2 : to give necessary or recently acquired information to I'll fill you in

intransitive verb

: to fill a vacancy usually temporarily interns filled in for regular staffers

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Examples of fill-in in a Sentence


my friend quickly filled me in on the portion of the movie that I had missed she's only filling in while the regular secretary is on vacation

Recent Examples on the Web: Verb

Her budget proposal, with many of the details missing in Thursday’s speech filled in and, presumably, big bites taken at the city’s problem, is due in October. Eric Zorn,, "Column: Mayor Lori Lightfoot has a thing for ‘conversations,’ and that’s good," 30 Aug. 2019 But nationwide, student satisfaction is yet to rise, indicating these universities are in a minority (the measure is, though, a lagging indicator, as students fill in forms only after finishing their degree). The Economist, "The winners and losers of England’s great university free-for-all," 22 Aug. 2019 Austin Schlottmann started for Leary after Don Barclay filled in the first two games. Ryan O'halloran, The Denver Post, "Broncos Briefs: Rookie TE Noah Fant sustains foot injury," 19 Aug. 2019 As firearm deaths ticked up and Congress dithered, many nonprofits, universities, and states have devoted resources to fill in the glaring gap left by the lack of federal funds. Wired, "The CDC Could Totally Study Gun Violence—It Just Needs Money," 7 Aug. 2019 If all those at risk had received naloxone, nearly 9 million prescriptions would have been filled in 2018, the report said. San Diego Union-Tribune, "CounterAct provides treatment for opioid overdose before it occurs," 7 Aug. 2019 Louisville rolled out the news in a series of tweets Thursday gradually filling in a graphic of the court. Danielle Lerner, The Courier-Journal, "Louisville basketball: KFC Yum Center court gets a makeover with dunking cardinal," 1 Aug. 2019 Speaking Tuesday during the three-day Alaska Eskimo Whaling Commission’s meeting in Utqiagvik, Rear Adm. Matthew Bell said the job should be filled in August. Anchorage Daily News, "Coast Guard to bring back Alaska tribal liaison job," 1 Aug. 2019 The muralists followed with pencils, filling in the various spaces with undulating waves. John Zotos, Dallas News, "Dallas exhibition of art star Francesco Clemente was years in the making — and worth the wait," 1 Aug. 2019

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

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First Known Use of fill-in


1917, in the meaning defined above


1840, in the meaning defined at transitive sense 1

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Statistics for fill-in

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Time Traveler for fill-in

The first known use of fill-in was in 1840

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More Definitions for fill-in



English Language Learners Definition of fill-in

: someone who takes the place of another person who is away for a short time : someone who fills in for someone else

More from Merriam-Webster on fill-in

Rhyming Dictionary: Words that rhyme with fill-in

Thesaurus: All synonyms and antonyms for fill-in

Comments on fill-in

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


recurring in steady succession

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