mittPronunciation: /mɪt/Translate mitt | into Italian | into Spanish Definition of mitt noun (usually mitts) a mitten:woolly mitts a glove leaving the fingers and thumb-tip exposed. (also baseball mitt) Baseball a large fingerless glove worn by the catcher or first baseman. informal a person’s hand:it’s essential to get your mitts on a pair of low-slung combat trousersOrigin: mid 18th century: abbreviation of mittenmitt in other Oxford dictionaries Definition of mitt in the US English dictionary