<p><strong>Noun</strong></p><ul><li>A tail, end, or part shaped like a fan.</li><li>One of a breed of domestic pigeons, having a fan-shaped tail.</li><li>Any of various small birds having fanlike tails, such as the Old World flycatchers of the genus Rhipidura and the American wood warblers of the genus Euthlypis.</li><li>Fantail goldfish.</li><li>Building Trades, Architecture: A structure or structural member having a number of radiating parts, as an arch centering.</li><li>Nautical: The part of a rounded stern extending abaft the aftermost perpendicular; rounded counter.</li><li>The area within this.</li><li>Western U.S.: A mustang.</li></ul>