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

bon vivant \bon` vi`vant"\ b^on` v-e`vaumn"; pl. bons
   vivants -vaumn"z. f. bon good + vivant, p. pr. of vivre
   to live.
   a good fellow; a jovial companion; a free liver.
   1913 webster
see also:
bons vivants 

[2] : WordNet (r) 2.0

bon vivant
     n : a person devoted to refined sensuous enjoyment especially
         good food and drink syn: epicure, gourmet, gastronome,
          epicurean, foodie
see also:
epicure gourmet gastronome epicurean foodie 

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

86 moby thesaurus words for "bon vivant":
   brillat-savarin, cyrenaic, heliogabalus, lucullus, sardanapalus,
   amateur, arbiter, arbiter elegantiarum, arbiter of taste,
   authority, board-and-roomer, boarder, boon companion, cannibal,
   carnivore, carpet knight, clubman, clubwoman, cognoscente,
   collector, connaisseur, connoisseur, connoisseur of food, consumer,
   critic, dilettante, diner, diner-out, eater, eater-out, epicure,
   epicurean, excellent companion, expert, feeder, flesh-eater,
   fruitarian, gastronome, glutton, good company, good fellow,
   good judge, good mixer, gourmand, gourmet, grain-eater,
   graminivore, granivore, hearty, hedonist, herbivore, high liver,
   hungry mouth, joiner, jolly fellow, judge, lactovegetarian,
   luncher, man-about-town, man-eater, maven, meat-eater, mixer,
   mouth, nightclub habitue, omnivore, omophagist, pantophagist,
   phytophage, picnicker, plant-eater, playboy, pleasant company,
   pleasure-seeker, pot companion, predacean, refined palate,
   sensualist, sensuist, social lion, swine, sybarite, trencherman,
   vegetarian, virtuoso, voluptuary

Bon Vivant >> B Words
Bon Vivant, definition of term: Bon Vivant
bon+vivant_pag1.html

Bon >> B Words
Bon, definition of term: Bon
bon_pag1.html

Bon Voyage >> B Words
Bon Voyage, definition of term: Bon Voyage
bon+voyage_pag1.html

Bon Mot >> B Words
Bon Mot, definition of term: Bon Mot
bon+mot_pag1.html

Bon Ami >> B Words
Bon Ami, definition of term: Bon Ami
bon+ami_pag1.html

Bon Ton >> B Words
Bon Ton, definition of term: Bon Ton
bon+ton_pag1.html