Source : Webster's Revised Unabridged Dictionary (1913)

Landlord \Land"lord`\, n. [See {Land}, and {Lord}.]
   1. The lord of a manor, or of land; the owner of land or
      houses which he leases to a tenant or tenants.

   2. The master of an inn or of a lodging house.

            Upon our arrival at the inn, my companion fetched
            out the jolly landlord.               --Addison.

Source : WordNet®

landlord
     n : a landowner who leases to others