lag
     n 1: the act of slowing down or falling behind [syn: {slowdown},
          {retardation}]
     2: the time between one event, process, or period and another
        [syn: {interim}]
     3: one of several thin slats of wood forming the sides of a
        barrel or bucket [syn: {stave}]
     v 1: hang (back) or fall (behind) in movement, progress,
          development, etc. [syn: {dawdle}, {fall back}, {fall
          behind}]
     2: lock up or confine, in or as in a jail; "The suspects were
        imprisoned without trial"; "the murderer was incarcerated
        for the rest of his life" [syn: {imprison}, {incarcerate},
         {immure}, {put behind bars}, {jail}, {jug}, {gaol}, {put
        away}, {remand}]
     3: throw or pitch at a mark, as with coins
     4: cover with lagging to prevent heat loss; "lag pipes"
     [also: {lagging}, {lagged}]
Source: WordNet® 2.0

lag n. [MUD, IRC; very common] When used without qualification this is
   synomous with {netlag}. Curiously, people will often complain "I'm
   really lagged" when in fact it is their server or network connection
   that is lagging.


Source: The Jargon File

LAG
     Logical Address Group (ION)
     
     
Source: Virtual Entity of Relevant Acronyms