: a unit of liquid capacity equal to 231 cubic inches or four quarts see Weights and Measures Table
Examples of gallon in a Sentence
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Commuters might compare gas taxes: 57.9 cents per gallon in California (the highest in the nation, set to increase July 1 to 59.6 cents, 25 cents in Connecticut, 12 cents in Vermont, and so on.
—
Robert Gutierrez, Orange County Register, 25 May 2024
Just two weeks later, the national average hit a record $5.01 per gallon.
—Nerdwallet, The Mercury News, 24 May 2024
See all Example Sentences for gallon 
Robert Gutierrez, Orange County Register, 25 May 2024
Just two weeks later, the national average hit a record $5.01 per gallon.
—Nerdwallet, The Mercury News, 24 May 2024
See all Example Sentences for gallon
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'gallon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Gallon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gallon. Accessed 2 Jun. 2024.
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Medical Definition
gallon
noun
gal·lon
ˈgal-ən 
1
: a United States unit of liquid capacity equal to four quarts or 231 cubic inches or 3.785 liters
2
: a British unit of liquid and dry capacity equal to four quarts or 277.42 cubic inches or 4.544 liters
called also imperial gallon
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