<p><strong>Noun</strong></p><ul><li>a finger or toe.</li><li>the breadth of a finger used as a unit of linear measure, usually equal to 3/4 inch (2 centimeters).</li><li>any of the Arabic figures of 1 through 9 and 0.</li><li>any of the symbols of other number systems, as 0 or 1 in the binary.</li><li>index (def 6).</li><li>Astronomy. the twelfth part of the sun's or moon's diameter: used to express the magnitude of an eclipse.</li></ul>