gismo

from WordNet (r) 3.0 (2006)
gismo
    n 1: something unspecified whose name is either forgotten or not
         known; "she eased the ball-shaped doodad back into its
         socket"; "there may be some great new gizmo around the
         corner that you will want to use" [syn: {doodad},
         {doohickey}, {doojigger}, {gimmick}, {gizmo}, {gismo},
         {gubbins}, {thingamabob}, {thingumabob}, {thingmabob},
         {thingamajig}, {thingumajig}, {thingmajig}, {thingummy},
         {whatchamacallit}, {whatchamacallum}, {whatsis}, {widget}]
    2: a device or control that is very useful for a particular job
       [syn: {appliance}, {contraption}, {contrivance},
       {convenience}, {gadget}, {gizmo}, {gismo}, {widget}]
    

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