fill out
Britishverb
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to make or become fuller, thicker, or rounder
her figure has filled out since her marriage
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to make more substantial
the writers were asked to fill their stories out
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(tr) to complete (a form, application, etc)
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Complete by supplying required information, especially in writing. For example, Please fill out the application form , or I don't quite understand this drawing, so fill out the details . [Late 1800s]
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Become enlarged, distended, rounded in outline. For example, The wind filled out the sails , or He's put on weight and really filled out . Applied to objects, this expression dates from about 1700, but to persons or animals becoming fatter, only from the late 1800s.
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.
Instead of having to write a check or fill out a money order, the platform enabled people to securely and quickly send money digitally using their email address.
From Los Angeles Times ● Jul. 29, 2026
Those requirements dictate what California teenagers learn long before they even fill out an application.
From Los Angeles Times ● Jul. 23, 2026
To sign up, parents or guardians need to go to the IRS website and fill out Form 4547.
From MarketWatch ● Jul. 6, 2026
Then they can fill out the Free Application for Federal Student Aid, known as the FAFSA.
From The Wall Street Journal ● Jul. 2, 2026
You need to fill out your forms, and we’ll add you to the waiting list.”
From "The Miscalculations of Lightning Girl" by Stacy McAnulty
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
