- a common North American jay, Cyanocitta cristata, having bright blue plumage with greyish-white underparts
Collins Concise English Dictionary © HarperCollins Publishers::
bluejay /ˈbluːˌdʒeɪ/ n
ˈblue ˌjay, n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Birdsa bird of E North America, having a crested head, a bright blue back, and a gray breast.
blue′ jay′,
- Birdsa common, crested jay, Cyanocitta cristata, of eastern North America, having a bright blue back and a gray breast.
- 1700–10, American.
'bluejay' also found in these entries (note: many are not synonyms or translations):