Plus \Plus\, a. [L., more; akin to Gr. ?, ?, and E. full. See
   Full, a., and cf. Pi[`u], Pleonasm.]
   [1913 Webster]
   1. (Math.) More, required to be added; positive, as
      distinguished from negative; -- opposed to minus.
      [1913 Webster]

   2. Hence, in a literary sense, additional; real; actual.
      [1913 Webster]

            Success goes invariably with a certain plus or
            positive power.                       --Emerson.
      [1913 Webster]

   Plus sign (Math.), the sign (+) which denotes addition, or
      a positive quantity.
      [1913 Webster]

	

	146 Moby Thesaurus words for "plus":
   above, accessory, add, added, added to, addend, addition,
   additional, additionally, adjoin, advantage, affix, again,
   agglutinate, aggrandize, all included, along with, also,
   altogether, among other things, ancillary, and, and all, and also,
   and so, annex, another, append, as well, as well as, asset, attach,
   attended by, au reste, augment, auxiliary, balance, beef up,
   benefit, beside, besides, beyond, bonus, boost, build, burden,
   collateral, complicate, compound, conjoin, contributory,
   coupled with, decorate, dividend, else, en plus, encumber, enlarge,
   expand, extra, farther, for lagniappe, fresh, further, furthermore,
   gain, glue on, gratuity, hitch on, in addition, in addition to,
   in conjunction with, including, inclusive of, infix, inter alia,
   into the bargain, item, join with, lagniappe, leftover, let alone,
   likewise, linked to, magnify, margin, minus, more, moreover,
   negative, new, not to mention, on the side, on top of, ornament,
   other, over, over and above, overage, overmeasure, overplus,
   overrun, overset, overstock, oversupply, paste on, plus sign,
   positive, postfix, pourboire, prefix, profit, put with, remainder,
   return, saddle with, similarly, slap on, something extra, spare,
   subjoin, subtotal, suffix, sum, summation, superadd, supernumerary,
   superpose, supplemental, supplementary, surplus, surplusage,
   tack on, tag, tag on, then, therewith, tip, to boot, together with,
   too, total, ulterior, unite with, with, yet