The Collaborative International Dictionary of English v.0.48:

Particularly \Par*tic"u*lar*ly\, adv.
   1. In a particular manner; expressly; with a specific
      reference or interest; in particular; distinctly.
      [1913 Webster]

   2. In an especial manner; especially; in a high degree; as, a
      particularly fortunate man; a particularly bad failure.
      [1913 Webster]

            The exact propriety of Virgil I particularly
            regarded as a great part of his character. --Dryden.
      [1913 Webster]

WordNet (r) 3.0 (2006):

particularly
    adv 1: to a distinctly greater extent or degree than is common;
           "he was particularly fussy about spelling"; "a
           particularly gruesome attack"; "under peculiarly tragic
           circumstances"; "an especially (or specially) cautious
           approach to the danger" [syn: particularly,
           peculiarly, especially, specially]
    2: specifically or especially distinguished from others; "loves
       Bach, particularly his partitas"; "recommended one book in
       particular"; "trace major population movements for the Pueblo
       groups in particular" [syn: particularly, in particular]
    3: uniquely or characteristically; "these peculiarly cinematic
       elements"; "a peculiarly French phenomenon"; "everyone has a
       moment in history which belongs particularly to him"- John
       Knowles [syn: peculiarly, particularly]

Moby Thesaurus II by Grady Ward, 1.0:

123 Moby Thesaurus words for "particularly":
   a fortiori, above all, abundantly, acutely, all the more, alone,
   amazingly, amply, apart, astonishingly, at length, awesomely,
   by itself, chiefly, completely, concretely, conscientiously,
   conspicuously, copiously, critically, definitely, discriminatingly,
   discriminatively, distinctively, distinctly, dominantly, eminently,
   emphatically, especially, even, ever so, exactly, exceptionally,
   explicitly, expressly, exquisitely, extraordinarily, extremely,
   exuberantly, famously, fastidiously, finically, finickily,
   finickingly, first of all, fully, fussily, generously, glaringly,
   impressively, in chief, in detail, in extenso, in full,
   in particular, in the main, in the singular, in toto, incredibly,
   indeed, individually, intensely, item by item, magically,
   magnanimously, magnificently, mainly, markedly, marvelously,
   meticulously, minutely, more than ever, mostly, never so, no end,
   nobly, notably, once, one by one, only, outstandingly, peculiarly,
   per se, pointedly, precisely, predominantly, preeminently,
   primarily, principally, profusely, prominently, pronouncedly,
   punctiliously, queasily, remarkably, richly, scrupulously,
   separately, severally, signally, single-handedly, singly,
   singularly, solely, special, specially, specifically, splendidly,
   still more, strikingly, superlatively, surpassingly, surprisingly,
   to be specific, uncommonly, uniquely, unusually, very, wholly,
   wonderfully, wondrous, worthily, yea