: any of a class (Aves) of warm-blooded vertebrates distinguished by having the body more or less completely covered with feathers and the forelimbs modified as wings
Noun
A large bird flew overhead.
The birds were singing outside our window.
He's a tough old bird.
We met some smashing birds at the pub last night.
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Noun
Based in Orefield, Pennsylvania, the birds are fed an all-vegetarian, antibiotic-free diet.—
Jenn De La Vega,
Bon Appetit Magazine,
27 Oct. 2026 Two-legged birds can shift their weight from one leg to another, tucking one up into their bellies to keep it warm.—CBS News,
27 Oct. 2026
Verb
Resident birding experts host sunrise walks—be ready to rise early and get on the road in pitch dark—into the nearby Chyulu Hills cloud forest.—
Alexandra Marvar,
Vogue,
20 Oct. 2026 Coral reefs near seabird colonies are generally healthier, thanks to the nutrients that birds deposit in their guano.—
Lauren Sommer,
NPR,
13 Oct. 2026 See All Example Sentences for bird
Word History
Etymology
Noun
Middle English brid, bird, from Old English bridd
First Known Use
Noun
before the 12th century, in the meaning defined at sense 1