The Collaborative International Dictionary of English v.0.48:

Presbytery \Pres"by*ter*y\, n.; pl. Presbyteries. [L.
   presbyterium, Gr. ?. See Presbyter, and cf.
   Presbyterium.]
   [1913 Webster]
   1. A body of elders in the early Christian church.
      [1913 Webster]

   2. (Presbyterian Ch.) A judicatory consisting of all the
      ministers within a certain district, and one layman, who
      is a ruling elder, from each parish or church,
      commissioned to represent the church in conjunction with
      the pastor. This body has a general jurisdiction over the
      churches under its care, and next below the provincial
      synod in authority.
      [1913 Webster]

   3. The Presbyterian religion of polity. [R.] --Tatler.
      [1913 Webster]

   4.
      (a) (Arch.) That part of the church reserved for the
          officiating priest.
      (b) The residence of a priest or clergyman. --Gwilt.
          [1913 Webster]

WordNet (r) 3.0 (2006):

presbytery
    n 1: building reserved for the officiating clergy

Moby Thesaurus II by Grady Ward, 1.0:

91 Moby Thesaurus words for "presbytery":
   Council of Nicaea, Council of Trent, Easter sepulcher,
   Lateran Council, Sacred College, Vatican Council, abbacy, ambry,
   apse, archbishopric, archdeaconry, archiepiscopacy,
   archiepiscopate, baptistery, bishopdom, bishopric, blindstory,
   canonicate, canonry, cardinalship, chancel, chaplaincy,
   chaplainship, chapter, choir, church house, classis, clergy,
   clergy house, clerical order, clericals, cloisters, conciliarism,
   conclave, conference, confessional, confessionary, congregation,
   consistory, convention, convocation, crypt, curacy, deaconry,
   deaconship, deanery, deanship, diaconicon, diaconicum,
   diocesan conference, ecclesiastical council, ecumenical council,
   episcopacy, manse, ministry, nave, parochial church council,
   parochial council, parsonage, pastorage, pastorate, pastorship,
   plenary council, porch, prebend, prebendaryship, prelacy,
   prelateship, prelature, presbyterate, priestery, priesthood,
   primacy, rabbinate, rectorate, rectorship, rectory, rood loft,
   rood stair, rood tower, sacrarium, sacristy, session, synod,
   the cloth, transept, triforium, vestry, vicarage, vicariate,
   vicarship