The Collaborative International Dictionary of English v.0.48:

Syndication \Syn`di*ca"tion\, n.
   Act or process of syndicating or forming a syndicate.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

syndication
    n 1: organizing into or administering as a syndicate
    2: selling (an article or cartoon) for publication in many
       magazines or newspapers at the same time; "he received a
       comfortable income from the syndication of his work"

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "syndication":
   Anschluss, addition, affiliation, agglomeration, aggregation,
   agreement, alliance, amalgamation, assimilation, association,
   blend, blending, cabal, cartel, centralization, coalescence,
   coalition, combination, combine, combo, composition, confederacy,
   confederation, congeries, conglomeration, conjugation, conjunction,
   consolidation, conspiracy, ecumenism, embodiment, encompassment,
   enosis, federalization, federation, fusion, hookup, inclusion,
   incorporation, integration, junction, junta, league, marriage,
   meld, melding, merger, package, package deal, solidification,
   syncretism, syneresis, synthesis, tie-up, unification, union,
   wedding