gallonnoun
uk/ˈɡæl.ən/us/ˈɡæl.ən/[ C ] a unit for measuring volume:
How much does a gallon of petrol cost?
An imperial gallon, used in Britain, is equal to 4,546 cubic centimetres.
A US gallon is equal to 3,785 cubic centimetres.
[ C usually plural ] informal a large amount of liquid:
I love milk - I drink gallons of the stuff.
More examples
- The price of petrol will rise by 5p a gallon from tomorrow.
- My new car does 50 miles to the gallon (uses one gallon of fuel to travel 50 miles).
Thesaurus: synonyms and related words
Measurements of volume
- barrel
- bushel
- cc
- cl
- decilitre
- dl
- fl oz
- fluid ounce
- heaped
- heaping
- hl
- l
- level
- liter
- magnum
- ml
- pint
- qt
- quart
- tin
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You can also find related words, phrases, and synonyms in the topics:
Masses and large amounts of things