<p><strong>Noun</strong></p><ul><li>Any of several small North American songbirds of the genus <em>Sialia</em>, having predominantly blue plumage, as the eastern <em>S. sialis</em>, which has a blue back and a reddish-brown breast.</li><li>Fairy bluebird.</li><li>(Usually initial capital letter) A member of Camp Fire, Inc., who is between the ages of six and eight.</li></ul>