Oxford Dictionary English idiolect noun noun BrE BrE//ˈɪdiəlekt// ; NAmE NAmE//ˈɪdiəlekt// [countable, uncountable] (linguistics) Add to my wordlistjump to other resultsthe way that a particular person uses language compare dialect Word Origin1940s: from idio- ‘own, personal’ + -lect as in dialect.See idiolect in the Oxford Advanced American DictionaryCheck pronunciation: idiolect oxfordlearnersdictionaries.com