NOUN (2)

1. trade that satisfies certain criteria on the supply chain of the goods involved, usually including fair payment for producers; often with other social and environmental considerations;

2. trade that is conducted legally;

WordNet (r) 3.0 (2006):

fair trade
    n 1: trade that satisfies certain criteria on the supply chain
         of the goods involved, usually including fair payment for
         producers; often with other social and environmental
         considerations
    2: trade that is conducted legally

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "fair trade":
   appraise, assess, balance of trade, big business, business,
   business dealings, commerce, commercial affairs,
   commercial relations, dealing, dealings, evaluate,
   fair-trade agreement, fair-trading, flexible supports, free trade,
   industry, intercourse, managed prices, market, marketing,
   mercantile business, merchantry, multilateral trade, price,
   price controls, price supports, price-fixing, prize, quote a price,
   rate, reciprocal trade, rent control, restraint of trade,
   rigid supports, small business, the business world,
   the marketplace, trade, traffic, truck, unilateral trade,
   valorization, valorize, valuate, value