ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: jack (I) + daw
1. : a common bird ( Corvus monedula ) of Europe and parts of Asia that is closely related to but smaller than the common crow, is glossy black above and dark gray below with silvery gray markings on head and neck, is a clever mimic capable of learning to imitate the human voice, is gregarious in habits usually nesting in and about buildings, and is readily tamed
2. : grackle 2 ; especially : boat-tailed grackle