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

Definition of fill-in

 (Entry 1 of 2)

: someone or something that fills in

fill 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

Hyde had managed a big league game just once previously, as Florida Marlins bench coach filling in during a 2-1 loss to Tampa Bay in June 2011 after Edwin Rodriguez quit. Ronald Blum, The Seattle Times, "Hyde gets 1st win as manager, Orioles beat Yankees 5-3," 31 Mar. 2019 The majority of their exteriors are brick, but they're accented (often in those triangular gables) with decorative half-timbering: essentially a mock frame of thin boards with stucco or stone filling in the spaces between the boards. Maggie Burch, House Beautiful, "There's A Reason You Don't See Many Tudor-Style Homes These Days," 1 Nov. 2018 It's been a pleasure filling in for Laura Ingraham all this week. Fox News, "'Angel moms' weigh in on the immigration debate," 24 Aug. 2018 Lessard said the new songs were crafted very democratically, with Donicht generally bringing in a song or concept and the other two members filling in around it. Chris Bieri, Anchorage Daily News, "Life Ain’t Fairview Trio explores grittier side of Anchorage life in second album," 13 July 2018 Catcher Bryan Holaday, filling in for expectant father and starter J.T. Realmuto, stroked a walk-off single to score Miguel Rojas and win the game for the Marlins. Matthew Defranks,, "A Closer Look: Miami Marlins 4, Milwaukee Brewers 3 (10 innings)," 10 July 2018 In an attempt to fill in the historical gaps, researchers sequenced the genetic material of 71 dog remains collected from bones found in Siberia, the United States and Mexico. Washington Post, "Study provides clues to fate of early North American dogs," 5 July 2018 Climbing the Learning Curve Foremost among those challenges is the need to fill in gaping holes in our knowledge of life’s fundamental limitations. Leonard David, Scientific American, "As Space Becomes a Busy Place, NASA Bolsters Its Planet-Contamination Police," 3 July 2018 Thompson has had decent production his first three seasons, but will be in a position to make more plays filling in for Davis at the weakside spot. Joseph Person, charlotteobserver, "Panthers position analysis: Will play of LB Shaq Thompson affect Thomas Davis' future?," 2 July 2018

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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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

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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).


an act or instance of returning to life

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