NOUN (2)

1. ownership of land; the state or fact of owning land;

2. a holding in the form of land;

The Collaborative International Dictionary of English v.0.48:

Landholder \Land"hold`er\, n.
   A holder, owner, or proprietor of land. -- Land"hold`ing,
   n. & a.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

landholding \landholding\ n.
   1. ownership of land; the state or fact of owning land.
      [WordNet 1.5]

   2. A holding in the form of land; the land owned by a person.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

landholding
    n 1: ownership of land; the state or fact of owning land
    2: a holding in the form of land

Moby Thesaurus II by Grady Ward, 1.0:

66 Moby Thesaurus words for "landholding":
   acres, alluvion, alluvium, arable land, blessed with, clay, clod,
   crust, dirt, dominion, dominium, dry land, dust, earth, enfeoffed,
   freehold, glebe, grassland, ground, having, having and holding,
   holding, in possession of, land, land tenure, landed, landholdings,
   landownership, landowning, lithosphere, lordship, marginal land,
   marl, master of, mold, occupying, overlordship, ownership, owning,
   possessed of, possessing, possessorship, propertied,
   property-owning, proprietary, proprietorship, real estate,
   real property, region, regolith, seigniory, seized of, sod, soil,
   sovereignty, subaerial deposit, subsoil, tenured, terra,
   terra firma, terrain, territory, the country, topsoil, woodland,
   worth