B1nounscience
US/ˈɡæl.ən/
UK/ˈɡæl.ən/
a unit for measuring liquid: about 3.8 liters in the US and 4.5 liters in the UK
In context
In America, petrol is sold by the gallon, not by the liter.
We bought two gallons of water before the hurricane arrived.
A leaking tap can waste hundreds of gallons of water a year.
Words that go with gallon
noun + preposition
- gallon ofHe drinks almost a gallon of milk a week.
- miles per gallonThis car does about forty miles per gallon.
- by the gallonThe restaurant buys cooking oil by the gallon.
noun + noun
- gallon jugShe filled a gallon jug with fresh water.
adjective + noun
- million gallonsTen million gallons of oil spilled into the sea.