: an action or instance of filling up something (such as a gas tank)

Examples of fill-up in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
No more steak-knife sets with five-gallon fill-ups. Patt Morrison, Los Angeles Times, 18 Mar. 2026 Checking tire pressure every other fill-up is one suggestion. ABC News, 16 Mar. 2026 All of that adds to the cost of your fill-up. Chris Isidore, CNN Money, 11 Mar. 2026 Cutting a few miles several times weekly could save a fill-up or two. Keith Laing, USA Today, 10 Mar. 2026 See All Example Sentences for fill-up

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of fill-up was in 1853

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Cite this Entry

“Fill-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fill-up. Accessed 28 Mar. 2026.

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