Definition of gallon in English:

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Pronunciation: /ˈɡalən/


1A unit of volume for liquid measure equal to four quarts, in particular.
1.1US Equivalent to 3.79 liters.
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).
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.



Pronunciation: /-nij/
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.

  • This unit of volume for liquids is from Anglo-Norman French galon, from medieval Latin galletum ‘pail, liquid measure’. The origin may be Celtic.

Words that rhyme with gallon

Alan, talon

For editors and proofreaders

Syllabification: gal·lon

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