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