The Collaborative International Dictionary of English v.0.48:

Parquet \Par*quet"\ (p[aum]r*k[=a]" or p[aum]r*k[e^]t"), n. [F.
   See Parquetry.]
   [1913 Webster]
   1. A body of seats on the floor of a music hall or theater
      nearest the orchestra; but commonly applied to the whole
      lower floor of a theater, from the orchestra to the dress
      circle; the pit.
      [1913 Webster]

   2. Same as Parquetry.
      [1913 Webster]

   3. In various European public bourses, the railed-in space
      within which the "agents de change," or privileged
      brokers, conduct business; also, the business conducted by
      them; -- distinguished from the coulisse, or outside
      market.
      [Webster 1913 Suppl.]

   4. In most European countries, the branch of the
      administrative government which is charged with the
      prevention, investigation, and punishment of crime,
      representing the public and not the individual injured.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

parquet
    n 1: a floor made of parquetry [syn: parquet, parquet floor]
    2: seating on the main floor between the orchestra and the
       parquet circle

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "parquet":
   auditorium, balcony, box, box seat, carpet, check, checker,
   checkerboard, checkerwork, chessboard, colors in patches, cover,
   crazy-work, deck, dress circle, earth, fauteuil, floor,
   floor covering, flooring, gallery, ground, harlequin, loge,
   marquetry, mosaic, nigger heaven, orchestra, orchestra circle,
   paradise, parquet circle, parquetry, parterre, patchwork, pave,
   pavement, paving, peanut gallery, pit, plaid, proscenium boxes,
   stall, standing room, surfacing, tartan, terra firma, tessellation,
   tesserae, theatre stall, variegated pattern