WordNet (r) 3.0 (2006):

affairs
    n 1: matters of personal concern; "get his affairs in order"
         [syn: personal business, personal matters, affairs]
    2: transactions of professional or public interest; "news of
       current affairs"; "great affairs of state"

Moby Thesaurus II by Grady Ward, 1.0:

78 Moby Thesaurus words for "affairs":
   accord, activities, activity, addition, adjunct, affair,
   affiliation, affinity, alliance, approximation, assemblage,
   association, bag, bond, business, circumstances, closeness,
   combination, commerce, concern, concernment, concerns,
   condition of things, conditions, connectedness, connection,
   contiguity, contrariety, dealings, deduction, disjunction, doings,
   employ, employment, enterprise, filiation, function, goings-on,
   homology, intercourse, interest, intimacy, junction, labor,
   liaison, life, link, linkage, linking, lookout, march of events,
   matter, matters, mutual attraction, nearness, occupation,
   proceedings, propinquity, proximity, rapport, relatedness,
   relation, relations, relationship, run of things, service,
   similarity, state of affairs, sympathy, the times, the world,
   thing, tie, tie-in, undertaking, union, what happens, work