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  • fill-up
    fill-up
    noun
    an act or instance of filling up, as a tank with fuel.
  • fill up
    fill up
    verb
    (tr) to complete (a form, application, etc)
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.

See Examples For:

A 15-gallon fill-up that ran $45 in 2023 can cost close to $70 or more.

From MarketWatch ● May 13, 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

One hitch: Starship will need a fill-up at an Earth-orbiting fuel depot, before heading to the moon.

From Seattle Times ● Aug. 24, 2022

The two little spheres, each containing a triplet, are like fill-up paragraphs to a compositor—they seem to be kept standing and popped in where wanted.

From Occult Chemistry Clairvoyant Observations on the Chemical Elements by A. P. Sinnett

In Allentown, Pa., Enid Santiago says it now costs $80 to fill up her minivan, up from $50 earlier this year.

From The Wall Street Journal ● Oct. 4, 2026

French motorists have clogged TotalEnergies service stations in recent months to fill up with discount petrol, after the energy giant capped its prices at 1.99 euros per litre.

From Barron's ● Sep. 17, 2026

I also fill up a massively obnoxious water bottle that has times on it that I carry everywhere.

From Los Angeles Times ● Sep. 14, 2026

"Drivers are having to dig ever deeper into their pockets every time they fill up, and there's no sign of any relief yet," said Dennis.

From BBC ● Sep. 9, 2026

We fill up our empty water bottles at the fountain, and I hand him one of the two bottles I’ve been carrying in the back of my belt, which have orange Gatorade inside.

From "Keeping Pace" by Laurie Morrison

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