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Definitions

fill in

[fil-in] / ˈfɪlˌɪn /


VERB
act as substitute
Synonyms
Antonyms
WEAK
leave blank


fill-in


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is the lack of detail and potentially very narrow window to fill in the blanks that are causing jitters for some in the party.

From BBC • Jun. 22, 2026

“They’re not going to have the resources or the political will to fill in those gaps,” Sommers says.

From Barron's • Jun. 20, 2026

SpaceX’s acquisition could help fill in a leadership gap at xAI since Musk said the company needed to be “rebuilt from the foundations up.” xAI laid off staffers, including its founding team.

From The Wall Street Journal • Jun. 17, 2026

There are two things: One is something people have said for a long time the pool needs, that somebody has to fill in the spaces between the concrete slabs to make sure they don’t leak.

From Slate • Jun. 4, 2026

Slowly, I fill in the rest of the answers.

From "The Miscalculations of Lightning Girl" by Stacy McAnulty




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