A blank booklet of lined paper used in the administration of examinations, so named because of its pale blue front and back covers.

(law) To format a document, particularly a legal document including citations, according to the rules of the Bluebook, a US style guide.

A North American sunfish; Lepomis macrochirus.

(informal) A prude. / (slang) A person from Nova Scotia, Canada. / (US, naval slang) A person who has crossed the Arctic Circle. / (slang) A variety of potato from Nova Scotia, Canada.

Any of several species of blueberry, of the genus Vaccinium, having blue berries, that are not normally cultivated.

A wild North American blueberry, Vaccinium angustifolium, sometimes grown commercially for its fruit

The common species of blueberry, Vaccinium corymbosum, grown for its fruit.

plural of bluebird

plural of bluebottle

Alternative spelling of bluish