NOUN (2)

1. doing good; feeling beneficent;

2. the quality of being kind or helpful or generous;

The Collaborative International Dictionary of English v.0.48:

Beneficence \Be*nef"i*cence\, n. [L. beneficentia, fr.
   beneficus: cf. F. b['e]n['e]ficence. See Benefice.]
   The practice of doing good; active goodness, kindness, or
   charity; bounty springing from purity and goodness.
   [1913 Webster]

         And whose beneficence no charge exhausts. --Cowper.
   [1913 Webster]

   Syn: See Benevolence.
        [1913 Webster]

WordNet (r) 3.0 (2006):

beneficence
    n 1: doing good; feeling beneficent [ant: maleficence]
    2: the quality of being kind or helpful or generous [ant:
       balefulness, maleficence, mischief]

Moby Thesaurus II by Grady Ward, 1.0:

47 Moby Thesaurus words for "beneficence":
   BOMFOG, Benthamism, Christian charity, Christian love, agape, alms,
   altruism, auspiciousness, benefaction, benevolence,
   benevolent disposition, benevolentness, benignancy, benignity,
   bigheartedness, brightness, brotherly love, caritas,
   charitableness, charity, cheerfulness, cheeriness, contribution,
   do-goodism, favorableness, flower power, fortunateness, generosity,
   giving, good auspices, good omen, goodwill, grace,
   greatheartedness, humanitarianism, largeheartedness, love,
   love of mankind, luckiness, offering, philanthropism, philanthropy,
   propitiousness, prosperousness, utilitarianism, welfarism,
   well-disposedness