[1] : The Collaborative International Dictionary of English v.0.48

sneaker \sneak"er\ sn=ek"~er, n.
   1. one who sneaks. --lamb.
      1913 webster

   2. a vessel of drink. prov. eng.
      1913 webster

            a sneaker of five gallons.            --spectator.
      1913 webster

   3. a type of soft shoe with a flat, pliable, typically rubber
      or other soft sole, and canvas-like upper, used in sports
      such as tennis, or for comfort. called sneaker because
      they give no warning of one's approach. usually used in
      the pl.
      webster 1913 suppl. +pjc

   4. a punch bowl. obs. --spectator.
      webster 1913 suppl.

[2] : WordNet (r) 2.0

sneaker
     n 1: a canvas shoe with a pliable rubber sole syn: gym shoe, tennis
          shoe
     2: someone acting as an informer or decoy for the police syn:
        fink, snitch, snitcher, stoolpigeon, stoolie, sneak,
         canary
see also:
gym shoe tennis shoe fink snitch snitcher stoolpigeon 
stoolie sneak canary 

[3] : Jargon File (4.3.1, 29 Jun 2001)

sneaker n. an individual hired to break into places in order to test
   their security; analogous to tiger team. compare samurai.


see also:
tiger team samurai 

Sneaker >> S Words
Sneaker, definition of term: Sneaker
sneaker_pag1.html