The Collaborative International Dictionary of English v.0.48:

Manor \Man"or\, n. [OE. maner, OF. maneir habitation, village,
   F. manoir manor, prop. the OF. inf. maneir to stay, remain,
   dwell, L. manere, and so called because it was the permanent
   residence of the lord and of his tenants. See Mansion, and
   cf. Remain.]
   1. (Eng. Law) The land belonging to a lord or nobleman, or so
      much land as a lord or great personage kept in his own
      hands, for the use and subsistence of his family.
      [1913 Webster]

            My manors, rents, revenues, l forego. --Shak.
      [1913 Webster]

   Note: In these days, a manor rather signifies the
         jurisdiction and royalty incorporeal, than the land or
         site, for a man may have a manor in gross, as the law
         terms it, that is, the right and interest of a
         court-baron, with the perquisites thereto belonging.
         [1913 Webster]

   2. (American Law) A tract of land occupied by tenants who pay
      a free-farm rent to the proprietor, sometimes in kind, and
      sometimes by performing certain stipulated services.
      --Burrill.
      [1913 Webster]

   Manor house, or Manor seat, the house belonging to a
      manor; the house of the lord of the manor; a manse.
      [1913 Webster]

WordNet (r) 3.0 (2006):

manor
    n 1: the mansion of a lord or wealthy person [syn: manor,
         manor house]
    2: the landed estate of a lord (including the house on it)

Moby Thesaurus II by Grady Ward, 1.0:

26 Moby Thesaurus words for "manor":
   acres, castle, chateau, chattels real, demesne, domain, grounds,
   honor, land, landed property, lands, lot, lots, messuage, parcel,
   plat, plot, praedium, property, quadrat, real estate,
   real property, realty, tenements, toft, villa



Bouvier's Law Dictionary, Revised 6th Ed (1856):

MANOR, estates. This word is derived from the French manoir, and signifies,
a house, residence, or habitation. At present its meaning is more enlarged,
and includes not only a dwelling-house, but also lands. Vide Co. Litt. 58,
108; 2 Roll. Ab. 121 Merl. Repert. mot Manoir. See Serg. Land Laws of
Pennsyl. 195.
     2. By the English law, a manor is a  tract of land originally granted
by the king to a person of rank, part of which was given by the grantee to
his followers, and the rest lie retained under the name of his demesnes;
that which remained uncultivated was called the lord's waste, and served for
public roads and common of pasture for the lord and his tenants.



U.S. Gazetteer Places (2000):

Manor, PA -- U.S. borough in Pennsylvania
   Population (2000):    2796
   Housing Units (2000): 1044
   Land area (2000):     2.010493 sq. miles (5.207152 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    2.010493 sq. miles (5.207152 sq. km)
   FIPS code:            47000
   Located within:       Pennsylvania (PA), FIPS 42
   Location:             40.335854 N, 79.668229 W
   ZIP Codes (1990):     15665
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Manor, PA
    Manor


U.S. Gazetteer Places (2000):

Manor, TX -- U.S. city in Texas
   Population (2000):    1204
   Housing Units (2000): 436
   Land area (2000):     1.144837 sq. miles (2.965115 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.144837 sq. miles (2.965115 sq. km)
   FIPS code:            46440
   Located within:       Texas (TX), FIPS 48
   Location:             30.343071 N, 97.556710 W
   ZIP Codes (1990):     78653
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Manor, TX
    Manor