The Collaborative International Dictionary of English v.0.48:

Particular \Par*tic"u*lar\, a. [OE. particuler, F. particulier,
   L. particularis. See Particle.]
   1. Relating to a part or portion of anything; concerning a
      part separated from the whole or from others of the class;
      separate; sole; single; individual; specific; as, the
      particular stars of a constellation. --Shak.
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            [Make] each particular hair to stand an end,
            Like quills upon the fretful porpentine. --Shak.
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            Seken in every halk and every herne
            Particular sciences for to lerne.     --Chaucer.
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   2. Of or pertaining to a single person, class, or thing;
      belonging to one only; not general; not common; hence,
      personal; peculiar; singular. "Thine own particular
      wrongs." --Shak.
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            Wheresoever one plant draweth such a particular
            juice out of the earth.               --Bacon.
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   3. Separate or distinct by reason of superiority;
      distinguished; important; noteworthy; unusual; special;
      as, he brought no particular news; she was the particular
      belle of the party.
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   4. Concerned with, or attentive to, details; minute;
      circumstantial; precise; as, a full and particular account
      of an accident; hence, nice; fastidious; as, a man
      particular in his dress.
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   5. (Law)
      (a) Containing a part only; limited; as, a particular
          estate, or one precedent to an estate in remainder.
      (b) Holding a particular estate; as, a particular tenant.
          --Blackstone.
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   6. (Logic) Forming a part of a genus; relatively limited in
      extension; affirmed or denied of a part of a subject; as,
      a particular proposition; -- opposed to universal: e. g.
      (particular affirmative) Some men are wise; (particular
      negative) Some men are not wise.
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   Particular average. See under Average.

   Particular Baptist, one of a branch of the Baptist
      denomination the members of which hold the doctrine of a
      particular or individual election and reprobation.

   Particular lien (Law), a lien, or a right to retain a
      thing, for some charge or claim growing out of, or
      connected with, that particular thing.

   Particular redemption, the doctrine that the purpose, act,
      and provisions of redemption are restricted to a limited
      number of the human race. See Calvinism.
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   Syn: Minute; individual; respective; appropriate; peculiar;
        especial; exact; specific; precise; critical;
        circumstantial. See Minute.
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The Collaborative International Dictionary of English v.0.48:

Particular \Par*tic"u*lar\, n.
   1. A separate or distinct member of a class, or part of a
      whole; an individual fact, point, circumstance, detail, or
      item, which may be considered separately; as, the
      particulars of a story.
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            Particulars which it is not lawful for me to reveal.
                                                  --Bacon.
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            It is the greatest interest of particulars to
            advance the good of the community.    --L'Estrange.
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   2. Special or personal peculiarity, trait, or character;
      individuality; interest, etc. [Obs.]
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            For his particular I'll receive him gladly. --Shak.
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            If the particulars of each person be considered.
                                                  --Milton.
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            Temporal blessings, whether such as concern the
            public . . . or such as concern our particular.
                                                  --Whole Duty
                                                  of Man.
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   3. (Law) One of the details or items of grounds of claim; --
      usually in the pl.; also, a bill of particulars; a minute
      account; as, a particular of premises.
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            The reader has a particular of the books wherein
            this law was written.                 --Ayliffe.
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   Bill of particulars. See under Bill.

   In particular, specially; specifically; peculiarly;
      particularly; especially. "This, in particular, happens to
      the lungs." --Blackmore.

   To go into particulars, to relate or describe in detail or
      minutely.
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WordNet (r) 3.0 (2006):

particular
    adj 1: unique or specific to a person or thing or category; "the
           particular demands of the job"; "has a particular
           preference for Chinese art"; "a peculiar bond of sympathy
           between them"; "an expression peculiar to Canadians";
           "rights peculiar to the rich"; "the special features of a
           computer"; "my own special chair" [syn: particular(a),
           peculiar(a), special(a)]
    2: separate and distinct from others of the same group or
       category; "interested in one particular artist"; "a man who
       wishes to make a particular woman fall in love with him"
    3: surpassing what is common or usual or expected; "he paid
       especial attention to her"; "exceptional kindness"; "a matter
       of particular and unusual importance"; "a special occasion";
       "a special reason to confide in her"; "what's so special
       about the year 2000?" [syn: especial(a), exceptional,
       particular(a), special]
    4: first and most important; "his special interest is music";
       "she gets special (or particular) satisfaction from her
       volunteer work" [syn: particular, special]
    5: exacting especially about details; "a finicky eater"; "fussy
       about clothes"; "very particular about how her food was
       prepared" [syn: finical, finicky, fussy, particular,
       picky]
    6: providing specific details or circumstances; "a particular
       description of the room"
    n 1: a fact about some part (as opposed to general); "he always
         reasons from the particular to the general" [syn:
         particular, specific] [ant: general]
    2: a small part that can be considered separately from the
       whole; "it was perfect in all details" [syn: detail,
       particular, item]
    3: (logic) a proposition that asserts something about some (but
       not all) members of a class [syn: particular, particular
       proposition] [ant: universal, universal proposition]

Moby Thesaurus II by Grady Ward, 1.0:

245 Moby Thesaurus words for "particular":
   absolute, accurate, adjunct, adoptive, adventure, appointive,
   appropriate, article, aspect, attentive, blow-by-blow, brass tacks,
   careful, case, categorical, censorious, certain, characteristic,
   choicy, choosing, choosy, circumstance, citation, classificational,
   classificatory, close, component, concrete, conscientious,
   constituent, contingent, correct, count, critical, cross reference,
   cross section, dainty, datum, defined, defining, definite,
   delicate, demanding, demonstration, denominative, detachment,
   detail, detailed, determinate, different, differential, discrete,
   discriminating, discriminative, distinct, distinctive,
   distinguished, distributional, distributive, division, divisional,
   divisionary, dole, eclectic, elective, electoral, element, episode,
   equal, esoteric, especial, especially, essential facts, essentials,
   even stephen, event, exact, exacting, exactly, example,
   exceptional, exemplification, exigent, experience, express,
   exquisite, extraordinary, facet, fact, factor, fastidious,
   fifty-fifty, fine, fine point, finical, finicking, finicky, fixed,
   fraction, full, fussy, half, half-and-half, halvers, hap,
   happening, happenstance, hypercritical, illustration,
   in particular, incident, incidental, individual, information,
   inner, installment, instance, intimate, isolated, item, itemized,
   lone, marked, matter, matter of fact, meticulous, minor detail,
   minute, minutia, minutiae, narrow, nice, notable, noteworthy,
   occasion, occurrence, one, only, ordinal, outstanding, painstaking,
   parcel, part, particular, particularized, particularly,
   particulars, peculiar, per capita, per head, percentage,
   perfectionistic, pernickety, persnickety, personal, phenomenon,
   picayune, picky, point, portion, precise, precisely,
   precisianistic, precisionistic, priggish, private, pro rata,
   proportional, proportionate, prorated, prudish, punctilious,
   punctual, puristic, puritanic, quadrant, quarter, quota, quotation,
   random sample, reality, reference, refined, regard, religious,
   remainder, remarkable, respect, respective, rigid, rigorous,
   sample, sampling, scrupulous, scrutinizing, section, sector,
   segment, selecting, selective, sensitive, separate, several, share,
   single, singular, sole, solipsistic, solitary, special, speciality,
   specially, specific, specifically, strict, subdivision,
   subdivisional, subgroup, subspecies, subtle, taxonomic,
   the concrete, the data, the details, the dope, the facts,
   the individual, the information, the particular, the particulars,
   the picture, the scoop, the score, the special, the specific,
   the specifics, the unique, the whole story, thing, thorough,
   turn of events, typal, typical, unique, unusual



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

PARTICULAR, LIEN, contracts. A right which a person has to retain property
in respect of money or labor expended on such particular property. For
example, when a tailor has made garments out of cloth delivered to him for
the purpose, he is not bound to part with the clothes until his employer,
has paid him for his services; nor a ship carpenter with a ship which he has
repaired; nor can an engraver be compelled to deliver the seal which he has
engraved for another, until his compensation has been paid. 2 Roll. Ab. 92;
3 M. & S. 167; 14 Pick. 332; 3 Bouv. Inst. n. 2514. Vide Lien.