The Collaborative International Dictionary of English v.0.48:

Real \Re"al\ (r[=e]"al), a. [LL. realis, fr. L. res, rei, a
   thing: cf. F. r['e]el. Cf. Rebus.]
   1. Actually being or existing; not fictitious or imaginary;
      as, a description of real life.
      [1913 Webster]

            Whereat I waked, and found
            Before mine eyes all real, as the dream
            Had lively shadowed.                  --Milton.
      [1913 Webster]

   2. True; genuine; not artificial, counterfeit, or factitious;
      often opposed to ostensible; as, the real reason; real
      Madeira wine; real ginger.
      [1913 Webster]

            Whose perfection far excelled
            Hers in all real dignity.             --Milton.
      [1913 Webster]

   3. Relating to things, not to persons. [Obs.]
      [1913 Webster]

            Many are perfect in men's humors that are not
            greatly capable of the real part of business.
                                                  --Bacon.
      [1913 Webster]

   4. (Alg.) Having an assignable arithmetical or numerical
      value or meaning; not imaginary.
      [1913 Webster]

   5. (Law) Pertaining to things fixed, permanent, or immovable,
      as to lands and tenements; as, real property, in
      distinction from personal or movable property.
      [1913 Webster]

   Chattels real (Law), such chattels as are annexed to, or
      savor of, the realty, as terms for years of land. See
      Chattel.

   Real action (Law), an action for the recovery of real
      property.

   Real assets (Law), lands or real estate in the hands of the
      heir, chargeable with the debts of the ancestor.

   Real composition (Eccl. Law), an agreement made between the
      owner of lands and the parson or vicar, with consent of
      the ordinary, that such lands shall be discharged from
      payment of tithes, in consequence of other land or
      recompense given to the parson in lieu and satisfaction
      thereof. --Blackstone.

   Real estate or Real property, lands, tenements, and
      hereditaments; freehold interests in landed property;
      property in houses and land. --Kent. --Burrill.

   Real presence (R. C. Ch.), the actual presence of the body
      and blood of Christ in the eucharist, or the conversion of
      the substance of the bread and wine into the real body and
      blood of Christ; transubstantiation. In other churches
      there is a belief in a form of real presence, not however
      in the sense of transubstantiation.

   Real servitude, called also Predial servitude (Civil
      Law), a burden imposed upon one estate in favor of another
      estate of another proprietor. --Erskine. --Bouvier.
      [1913 Webster]

   Syn: Actual; true; genuine; authentic.

   Usage: Real, Actual. Real represents a thing to be a
          substantive existence; as, a real, not imaginary,
          occurrence. Actual refers to it as acted or performed;
          and, hence, when we wish to prove a thing real, we
          often say, "It actually exists," "It has actually been
          done." Thus its reality is shown by its actuality.
          Actual, from this reference to being acted, has
          recently received a new signification, namely,
          present; as, the actual posture of affairs; since what
          is now in action, or going on, has, of course, a
          present existence. An actual fact; a real sentiment.
          [1913 Webster]

                For he that but conceives a crime in thought,
                Contracts the danger of an actual fault.
                                                  --Dryden.
          [1913 Webster]

                Our simple ideas are all real; all agree to the
                reality of things.                --Locke.
          [1913 Webster]

WordNet (r) 3.0 (2006):

real estate
    n 1: property consisting of houses and land [syn: real
         property, real estate, realty, immovable]

Moby Thesaurus II by Grady Ward, 1.0:

72 Moby Thesaurus words for "real estate":
   acres, alluvion, alluvium, arable land, block, chattels real, clay,
   clod, clos, close, croft, crust, demesne, dirt, domain, dry land,
   dust, earth, enclave, field, forty, freehold, glebe, grassland,
   ground, grounds, honor, kraal, land, landed property, landholdings,
   lands, lithosphere, lot, lots, manor, marginal land, marl,
   messuage, mold, pale, parcel, parcel of land, patch, plat, plot,
   plot of ground, praedium, property, quad, quadrangle, quadrat,
   real property, realty, region, regolith, section, sod, soil,
   square, subaerial deposit, subsoil, tenements, terra, terra firma,
   terrain, territory, the country, toft, topsoil, tract, woodland



The Jargon File (version 4.4.7, 29 Dec 2003):

real estate
 n.

    May be used for any critical resource measured in units of area. Most
    frequently used of chip real estate, the area available for logic on the
    surface of an integrated circuit (see also nanoacre). May also be used of
    floor space in a dinosaur pen, or even space on a crowded desktop
    (whether physical or electronic).


The Free On-line Dictionary of Computing (30 December 2018):

real estate

    May be used for any critical resource measured in
   units of area.  Most frequently used of "chip real estate",
   the area available for logic on the surface of an integrated
   circuit (see also nanoacre).  May also be used of floor
   space in a dinosaur pen, or even space on a crowded desktop
   (whether physical or electronic).

   [Jargon File]

   (1996-11-06)