\ 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

Verb 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 Maybe someone should give Trump a blank map and ask him to fill in the states. oregonlive, "President Trump incorrectly congratulates the state of Kansas on Super Bowl 2020 win," 2 Feb. 2020 The seafloor bones are filling in the picture of Europe’s genetic past. Andrew Curry, Science | AAAS, "Relics washed up on beaches reveal lost world beneath the North Sea," 30 Jan. 2020 Freshman Madison Clark, a backup goalie in field hockey, is filling in for Walpole (2-2). Jenna Ciccotelli,, "Some new faces between the pipes," 31 Dec. 2019 Billy Bush was filling in for Gifford the morning The Daily Mail published photos revealing the identify of Hoda's secret boyfriend. Amanda Garrity, Good Housekeeping, "Hoda Kotb and Her Fiancé Joel Schiffman Have Built an Incredible Family Together," 25 Nov. 2019 Johnson was filling in Lindsay Arnold, whose mother-in-law died last week. Lynette Rice,, "Sean Spicer is (finally) eliminated from Dancing With the Stars," 12 Nov. 2019 Hayes was filling in for another corrections officer in a floor that houses inmates with acute illnesses. Adam Ferrise, cleveland, "Lawsuit says Cuyahoga County deleted video of jail officer attacking inmate suffering from involuntary muscle twitches," 15 Oct. 2019 Rudolph, a second-year player out of Oklahoma State, was filling in for quarterback Ben Roethlisberger, who suffered a season-ending elbow injury in Week 2. Daniel Oyefusi,, "Steelers QB Mason Rudolph knocked unconscious, leaves game after hit from Ravens’ Earl Thomas," 6 Oct. 2019 The former Central Catholic High School star is filling in for absent defensive end Jadeveon Clowney, who has sat out training camp and the first two preseason games in a contract dispute., "Houston Texans LB, former Oregon prep star Brennan Scarlett filling in nicely for Jadaveon Clowney," 22 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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Time Traveler for fill-in

Time Traveler

The first known use of fill-in was in 1840

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Cite this Entry

“Fill-in.” Dictionary, Merriam-Webster, Accessed 20 Feb. 2020.

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More Definitions for fill-in


How to pronounce fill in (audio)

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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Rhyming Dictionary: Words that rhyme with fill-in

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