: someone or something that fills in
She performed well as the emergency fill-in.
filled in; filling in; fills in
1
: to enrich (something, such as a design) with detail
2
: to give necessary or recently acquired information to
I'll fill you in
: to fill a vacancy usually temporarily
Interns filled in for regular staffers.
Examples of fill-in in a Sentence
Noun
I'm just a fill-in, so I have no idea where office supplies are kept
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
Leigh Blickley,
Entertainment Weekly,
18 June 2026
Injury fill-in Jovo Lukic headed in a corner kick in the 21st minute for Bosnia-Herzegovina, which is making its second World Cup appearance after failing to advance out of group play in 2014.
—
John Wawrow,
Hartford Courant,
12 June 2026
Alyshia Hull,
USA Today,
25 June 2026
Iqnatural Jamaican Black Castor Oil, my go-to for filling in my thinning edges, is on sale for $10 during Amazon Prime Day.
—
Jailynn Taylor,
InStyle,
25 June 2026
See All Example Sentences for fill-in
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Noun
Her cohost, Craig Melvin, and fill-in anchor, Sheinelle Jones, then revealed more details on her whereabouts at the top of Thursday's show.
—
Leigh Blickley,
Entertainment Weekly,
18 June 2026
Injury fill-in Jovo Lukic headed in a corner kick in the 21st minute for Bosnia-Herzegovina, which is making its second World Cup appearance after failing to advance out of group play in 2014.
—
John Wawrow,
Hartford Courant,
12 June 2026
Verb
While succession planning and training can be scheduled throughout the year, leaders should continuously be thinking about what roles may need to be filled in the next six to 12 months.
—
Alyshia Hull,
USA Today,
25 June 2026
Iqnatural Jamaican Black Castor Oil, my go-to for filling in my thinning edges, is on sale for $10 during Amazon Prime Day.
—
Jailynn Taylor,
InStyle,
25 June 2026
See All Example Sentences for fill-in
Cite this Entry
“Fill-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fill-in. Accessed 27 Jun. 2026.
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