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

perish \per"ish\, v. i. imp.  p. p. perished; p. pr.  vb.
   n. perishing. oe. perissen, perisshen, f. p'erir, p.
   pr. p'erissant, l. perire to go or run through, come to
   nothing, perish; per through + ire to go. cf. issue, and
   see -ish.
   to be destroyed; to pass away; to become nothing; to be lost;
   to die; hence, to wither; to waste away.
   1913 webster

         i perish with hunger                    --luke xv. 17.
   1913 webster

         grow up and perish, as the summer fly.   --milton.
   1913 webster

         the thoughts of a soul that perish in thinking.
                                                  --locke.
   1913 webster
see also:
perished perishing issue -ish 

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

perish \per"ish\, v. t.
   to cause perish. obs. --bacon.
   1913 webster

   perish the thought i hope it will never happen; -- a phrase
      used after mention of a possible undesirable event,
      sometimes facetiously.
      pjc
see also:
perish the thought 

[3] : WordNet (r) 2.0

perish
     v : pass from physical life and lose all all bodily attributes
         and functions necessary to sustain life; "she died from
         cancer"; "they children perished in the fire"; "the
         patient went peacefully" syn: die, decease, go, exit,
          pass away, expire, pass ant: be born
see also:
die decease go exit pass away expire 
pass be born 

[4] : Moby Thesaurus II by Grady Ward, 1.0

105 moby thesaurus words for "perish":
   age, antiquate, be annihilated, be consumed, be destroyed,
   be done for, be gone, be killed, be lost, be no more, be wiped out,
   become extinct, become obsolete, break down, cease, cease to be,
   cease to exist, cease to live, collapse, come to naught,
   come to nothing, conk out, corrupt, croak, crumble, date, decay,
   decease, decline, decompose, dematerialize, demise, depart,
   depart this life, die, die away, die out, disappear, disintegrate,
   dispel, disperse, dissipate, dissolve, do a fade-out, dwindle, end,
   erode, evanesce, evaporate, exit, expire, fade, fade away,
   fade out, fall, fall asleep, flee, fly, fossilize, fust, go,
   go away, go out, go under, grow old, hide, leave no trace,
   leave the scene, lose currency, melt, melt away, molder, obsolesce,
   outdate, part, pass, pass away, pass on, pass out, pass over,
   peg out, peter out, put off mortality, putrefy, quit this world,
   retire from sight, return to dust, rot, run out, rust, sink,
   sink away, spoil, stop breathing, succumb, suffer an eclipse,
   superannuate, turn, up and die, vanish, vanish from sight, waste,
   waste away, wear away, yield the ghost

Perish >> P Words
Perish, definition of term: Perish
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