Source : Webster's Revised Unabridged Dictionary (1913)

Slew \Slew\ (sl[=oo]), n. [See {Slough} a wet place.]
   A wet place; a river inlet.

         The praire round about is wet, at times almost marshy,
         especially at the borders of the great reedy slews.
                                                  --T.
                                                  Roosevelt.

Slay \Slay\, v. t. [imp. {Slew}; p. p. {Slain}; p. pr. & vb. n.
   {Slaying}.] [OE. slan, sl?n, sleen, slee, AS. sle['a]n to
   strike, beat, slay; akin to OFries. sl[=a], D. slaan, OS. &
   OHG. slahan, G. schlagen, Icel. sl[=a], Dan. slaae, Sw. sl?,
   Goth. slahan; perhaps akin to L. lacerare to tear to pieces,
   Gr. ????, E. lacerate. Cf. {Slaughter}, {Sledge} a hammer,
   {Sley}.]
   To put to death with a weapon, or by violence; hence, to
   kill; to put an end to; to destroy.

         With this sword then will I slay you both. --Chaucer.

         I will slay the last of them with the sword. --Amos ix.
                                                  1.

         I'll slay more gazers than the basilisk. --Shak.

   Syn: To kill; murder; slaughter; butcher.

Slew \Slew\,
   imp. of {Slay}.

Slew \Slew\, v. t.
   See {Slue}.

Source : WordNet®

slay
     v : kill intentionally and with premeditation; "The mafia boss
         ordered his enemies murdered" [syn: {murder}, {hit}, {dispatch},
          {bump off}, {polish off}, {remove}]
     [also: {slew}, {slain}]

slew
     v 1: turn sharply; change direction abruptly; "The car cut to the
          left at the intersection"; "The motorbike veered to the
          right" [syn: {swerve}, {sheer}, {curve}, {trend}, {veer},
           {slue}, {cut}]
     2: move obliquely or sideways, usually in an uncontrolled
        manner; "the wheels skidded against the sidewalk" [syn: {skid},
         {slip}, {slue}, {slide}]

slew
     n : (often followed by `of') a large number or amount or extent;
         "a batch of letters"; "a deal of trouble"; "a lot of
         money"; "he made a mint on the stock market"; "it must
         have cost plenty" [syn: {batch}, {deal}, {flock}, {good
         deal}, {great deal}, {hatful}, {heap}, {lot}, {mass}, {mess},
          {mickle}, {mint}, {muckle}, {peck}, {pile}, {plenty}, {pot},
          {quite a little}, {raft}, {sight}, {spate}, {stack}, {tidy
         sum}, {wad}, {whole lot}, {whole slew}]

slew
     See {slay}