jackdaw Syllabification: (jack·daw)Pronunciation: /ˈjakˌdô/Translate jackdaw | into French | into German | into Italian | into Spanish Definition of jackdaw noun a small, gray-headed crow that typically nests in tall buildings and chimneys, noted for its inquisitiveness. Genus Corvus, family Corvidae: two species, in particular the Eurasian C. monedula jackdaw in other Oxford dictionaries Definition of jackdaw in the British & World English dictionary