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

peril \per"il\, n. f. p'eril, fr. l. periculum, periclum,
   akin to peritus experienced, skilled, and e. fare. see
   fare, and cf. experience.
   danger; risk; hazard; jeopardy; exposure of person or
   property to injury, loss, or destruction.
   1913 webster

         in perils of waters, in perils of robbers. --2 cor. xi.
                                                  26.
   1913 webster

         adventure hard
         with peril great achieved.               --milton.
   1913 webster

   at one's peril, or on one's peril, with risk or danger to
      one; at the hazard of. "on thy soul's peril." --shak.
      1913 webster

   syn: hazard; risk; jeopardy. see danger.
        1913 webster
see also:
fare experience at one's peril on one's peril danger 

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

peril \per"il\, v. t. imp.  p. p. periledor perilled; p.
   pr.  vb. n. periling or perilling.
   to expose to danger; to hazard; to risk; as, to peril one's
   life.
   1913 webster
see also:
periled perilled periling perilling 

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

peril \per"il\, v. i.
   to be in danger. obs. --milton.
   1913 webster

[4] : WordNet (r) 2.0

peril
     n 1: a source of danger; a possibility of incurring loss or
          misfortune; "drinking alcohol is a health hazard" syn:
          hazard, jeopardy, risk
     2: a state of danger involving risk syn: riskiness
     3: a venture undertaken without regard to possible loss or
        injury; "he saw the rewards but not the risks of crime";
        "there was a danger he would do the wrong thing" syn: risk,
         danger
     v 1: pose a threat to; present a danger to; "the pollution is
          endangering the crops" syn: endanger, jeopardize, jeopardise,
           menace, threaten, imperil
     2: put in a dangerous, disadvantageous, or difficult position
        syn: queer, expose, scupper, endanger
see also:
hazard jeopardy risk riskiness danger endanger 
jeopardize jeopardise menace threaten imperil 
queer expose scupper 

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

75 moby thesaurus words for "peril":
   breakers ahead, cardhouse, cause for alarm, compromise, crisis,
   danger, dangerous ground, desultoriness, emergency,
   encounter danger, endanger, endangerment, expose, exposure, gamble,
   gamble with, gaping chasm, gathering clouds, hazard,
   house of cards, imperil, imperilment, incur danger, infirmity,
   insecurity, insolidity, instability, insubstantiality, jeopard,
   jeopardize, jeopardy, lay open, liability, menace, openness, pass,
   perilousness, pinch, plight, precariousness, predicament,
   put in danger, put in jeopardy, quicksand, risk, riskiness,
   rocks ahead, shakiness, shiftiness, shiftingness, slipperiness,
   speculativeness, storm clouds, strait, subjection, susceptibility,
   thin ice, threat, ticklishness, treacherousness, treachery,
   unauthenticity, unauthoritativeness, uncertainty, undependability,
   unfaithworthiness, unreliability, unsolidity, unsoundness,
   unsteadfastness, unsteadiness, unsubstantiality, unsureness,
   untrustworthiness, vulnerability

[6] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

peril. the accident by which a thing is lost lee,. dr. rom. 911. 

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