The Collaborative International Dictionary of English v.0.48:

Stink \Stink\, v. i. [imp. & p. p. Stunk, Stank, p. pr. &
   vb. n. Stinking.] [AS. stinkan to have a smell (whether
   good or bad); akin to OHG. stinchan, G. & D. stinken to
   stink; of uncertain origin; cf. Icel. st["o]kkva to leap, to
   spring, Goth. stigqan to push, strike, or Gr. ? rancid. Cf.
   Stench.]
   To emit a strong, offensive smell; to send out a disgusting
   odor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stink \Stink\, v. t.
   To cause to stink; to affect by a stink.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stink \Stink\, n. [AS. stinc.]
   A strong, offensive smell; a disgusting odor; a stench.
   [1913 Webster]

   Fire stink. See under Fire.

   Stink-fire lance. See under Lance.

   Stink rat (Zool.), the musk turtle. [Local, U.S.]

   Stink shad (Zool.), the gizzard shad. [Local, U.S.]

   Stink trap, a stench trap. See under Stench.
      [1913 Webster]

WordNet (r) 3.0 (2006):

stink
    n 1: a distinctive odor that is offensively unpleasant [syn:
         malodor, malodour, stench, stink, reek, fetor,
         foetor, mephitis]
    v 1: be extremely bad in quality or in one's performance; "This
         term paper stinks!"
    2: smell badly and offensively; "The building reeks of smoke"
       [syn: reek, stink]