Englishimperial gallonnounMeaningA unit of measure for liquids used in the British Isles and in some Commonwealth countries, equivalent to 8 imperial pints, 4.55 litres, or 1.20 U.S. gallons.Related wordscongius(English)gallon(English)imp. gal.(English)winchester gallon(English)gal.(English)wine gallon(English)gill(English)gallonage(English)SourcesDictionaryAPI.dev English dictionary data