Noun bailey has 4 senses
- Bailey, Pearl Bailey, Pearl Mae Bailey - United States singer (1918-1990)
--1 is a kind of singer, vocalist, vocalizer, vocaliser
- Bailey, Nathan Bailey, Nathaniel Bailey - English lexicographer who was the first to treat etymology consistently; his work was used as a reference by Samuel Johnson (died in 1742)
--2 is a kind of lexicographer, lexicologist
- bailey - the outer courtyard of a castle
--3 is a kind of court, courtyard
- bailey - the outer defensive wall that surrounds the outer courtyard of a castle
--4 is a kind of rampart, bulwark, wall
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