Definition of gallon in English:


Syllabification: gal·lon
Pronunciation: /ˈgalən


  • 1A unit of volume for liquid measure equal to four quarts, in particular.
  • 1.1US Equivalent to 3.79 liters.
    More example sentences
    • This is also known as water volume which is measured in gallons per minute or litres per minute and the amount of water being thrown at the surface being cleaned.
    • This statement is often said by Canadians looking at all the US tourists trying to figure out how to convert litres to gallons.
    • The economics of doing that are such that one ends up using the equivalent of six gallons of gasoline to make enough hydrogen to replace one gallon of gasoline.
  • 1.2 (also imperial gallon) British Equivalent to 4.55 liters (also used for dry measure).
    More example sentences
    • A British gallon is 5 litres, but a US one is less.
    • Pump prices have already soared to 81p per litre - £3.68p a gallon - on many forecourts.
    • It was announced that garages would switch to selling petrol by the litre instead of the gallon from the following autumn.
  • 2 (gallons of) • informal A large volume: gallons of fake blood
    More example sentences
    • Rather than wasting multiple gallons of energized water I should think it would be profitable, if not philanthropic, to bottle it and take it to market.
    • What do a few buckets of waste mean anyway, in the grand scheme of things as you bob up and down atop gazillions of gallons of seawater?
    • Just as well we're in the country here, with a good breeze and gazillions of gallons of fresh air to sweep it up.



More example sentences
  • When the latest gallonage is added to the existing milk pool, the expansion makes Lakeland the fourth largest dairy milk processor in the country with operations spanning 15 counties.
  • Actually, gallonage was down by almost 1 percent.
  • Generally, the average high-volume gallonages in California on deciduous trees is about 400 gallons.


Middle English: from Anglo-Norman French galon, from the base of medieval Latin galleta, galletum 'pail, liquid measure', perhaps of Celtic origin.

More definitions of gallon

Definition of gallon in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day kerf
Pronunciation: kəːf
a slit made by cutting with a saw