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Synonyms

fill-up

American  
[fil-uhp] / ˈfɪlˌʌp /

noun

  1. an act or instance of filling up, as a tank with fuel.

fill up British  

verb

  1. (tr) to complete (a form, application, etc)

  2. to make or become completely full

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. the act of filling something completely, esp the petrol tank of a car

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of fill-up

First recorded in 1850–55; noun use of verb phrase fill up

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.

Brands like BP and Exxon offer discounts such as 10 cents off a gallon on your first fill-up and up to 5 cents off each gallon after that.

From MarketWatch • Mar. 24, 2026

Most of the gasoline was added recently, but the tank never runs completely dry and so a few molecules from the very first fill-up remain.

From Science Magazine • Dec. 1, 2023

There are now 59 stations, clustered in Los Angeles and the Bay Area, with an essential fill-up spot at Harris Ranch on Interstate 5 to make a trip between the two possible.

From Los Angeles Times • Jul. 26, 2023

If savings from the 18.4 cents-a-gallon federal tax on gas are fully passed along to consumers, drivers would save about $2.76 for a 15-gallon fill-up.

From Seattle Times • Jun. 22, 2022

Amateur theatrical companies from the city will be glad to come in return for an appreciative audience and a dance afterward, with a good fill-up on solid farm cooking.

From Dennison Grant: a Novel of To-day by Stead, Robert J. C.

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.