\ 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

Clay Chandler here, filling in for Alan with our weekly Sino-Saturday edition of CEO Daily. Eamon Barrett, Fortune, "How China's Most Popular App Spies on Users for Beijing," 8 June 2019 The Rapids looked pretty good in the last match with Andre Shinyashiki filling in for Lewis at left midfielder, and Diego Rubio or Cole Bassett might also be useable out on the wing. Mark Goodman, The Denver Post, "Backpass: Wins are fixing the Rapids’ serious attendance problem in Commerce City," 7 June 2019 Breed has been in office less than a year, filling in for Mayor Ed Lee, who died of a heart attack in 2017. Trisha Thadani,, "With few opponents in sight, Breed files to run for re-election," 5 June 2019 What fans think: Rather than filling in for Abigail, this Heartie envisions Candace stepping in as a brand-new character. Blair Donovan, Country Living, "Who Will Replace Lori Loughlin on 'When Calls the Heart?' Here Are 6 Popular Theories," 31 Mar. 2019 Cottage cheese was once a reliable character actor, standing in for meat during two world wars, filling in for ricotta and starring on diet plates. Kim Severson, New York Times, "Is America Ready to Love Cottage Cheese Again?," 26 June 2018 Smaller retailers aim to fill in if larger ones run out of hot products. Paul Ziobro, WSJ, "Shoppers Find Out How Much They Miss Toys ‘R’ Us," 21 Dec. 2018 After Abby's departure, Kasie was asked to fill in for her temporarily until a permanent replacement for the forensic specialist was found. Temi Adebowale, Country Living, "'NCIS' Announces Diona Reasonover Is Permanently Replacing Pauley Perette," 19 July 2018 Yanick Carrasco is likely to fill in for him, meaning France are likely to exploit his unfamiliarity with the role., "World Cup Preview: France vs Belgium - Recent Form, Classic Encounter, Predictions & More," 9 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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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).


having a desire to acquire more things

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