Tag

Tag - A piece of cardboard or plastic that is attached to a pouch, sack, or tray. It is usually in addition to the container label and is printed in various colors and provides information on contents, mail class and sortation type, routing instructions, and specific handling information.

[Category=Postal ]

Source: USPS, 02 November 2009 09:22:32, http://www.usps.com/cpim/ftp/pubs/pub32/pub32q_z.html

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tag - 

   (1) [programming] In markup languages such as XML and HTML, a set of bracketed characters that define the structural purpose of a block of content.
   (2) [computing] A keyword used to describe and Index_ an online resource such as a map service, blog, or website.

[Category=Geospatial ]

Source: esri, 08 September 2012 09:05:47, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation