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]WordNet (r) 3.0 (2006):
landholder n 1: a holder or proprietor of land [syn: landowner, landholder, property owner]