half and half noun 10adjective 1adverb 1forms 2 noun10 •A mixture of two things, generally in about equal proportions. •(US) A mixture of cream and milk often used in coffee, defined by the US Food and Drug Administration to contain between 10.5% and 18% milk fat. •A mixture of two alcoholic beverages, most frequently those brewed from malt, such as porter and ale or mild and bitter beers, in about equal parts; also used for equal parts of an alcoholic beverage and water. •A pizza with two different sets of toppings, one on each half. •(UK, Ireland) A combination of both rice and chips as an accompaniment to a curry, as opposed to one or the other. •(UK) A combination of beer and ale (or similar alcoholic drinks) in equal quantities. •(US) A mixture of half lemonade and half iced tea. •(Canada) A cup of coffee with the equivalent of half a packet of sugar and half a creamer of cream. •A person of mixed race or with dual nationality. •(slang) Both oral sex and vaginal sex performed in sequence by a prostitute adjective1 •In equal parts; half adverb1 •In two equal parts.She ordered her coffee with cream and a splash of half and half.They went half and half on the cost of dinner. formshalf and halfs · half-and-halfs