This action originated as a suit in ejectment brought by Nash Fletcher, Gerald Fletcher, Bruce Fletcher, Rose Fletcher Crabtree and Joann Fletcher States against James Hurdle and Shirl Hurdle, the co-executors of the will of Betty Roach, deceased, and her only devisees. These defendants, appellees here, claimed title to the real property involved under their decedent’s will. They asserted that she had title by the virtue of a warranty deed executed by Barbara Jean Stephens, the sister of the plaintiff-appellants. These parties, along with Barbara Jean Stephens, were heirs of Asbury Fletcher, who died intestate. The Asbury Fletcher heirs, who originated the suit, will hereafter be referred to as the plaintiff-appellants. Barbara Jean Stephens will be referred to as Barbara Jean. The appellees, who cross-appealed on the dismissal of a third party complaint against the executor of the estate of Barbara Jean will be referred to as the Hurdles.
Babe Fletcher, the brother of Asbury Fletcher, intervened, claiming that he was the owner of an undivided one-half interest in the lands in question in fee simple as a residual devisee under the will of I. N. Fletcher, deceased, the father of Asbury and Babe Fletcher. At the time of the trial, the plaintiff-appellants took the position that they were the owners in fee simple of an undivided five-twelfths interest in the land in question. On the basic issue the positions of the plaintiff-appellants and the intervenor-appellant are identical.
*643I. N. Fletcher was the common source of title claimed by all parties. He died on September 20, 1950. The issues turn upon the proper construction of his will and of a deed executed by the plaintiff-appellants to their sister Barbara Jean. The pertinent provisions of the will of I. N. Fletcher are:
3. I devise and bequeath to my granddaughter, Barbara Jean Fletcher, for and during her natural life, then to the heirs oi her body, if any, and if not then to Asbury Fletcher, his heirs and assigns, the following described real estate situated in Craighead County, Arkansas to-wit: [describing the lands in controversy].
7. After payment of all specific bequests and devises herein, I hereby devise and bequeath the entire residue of my estate, real, personal, or mixed to my two sons Asbury Fletcher and Babe Fletcher in equal parts.
Asbury Fletcher died October 11, 1956, leaving the plaintiff-appellants and Barbara Jean as his surviving heirs at law. Barbara Jean claimed title as an heir of her father Asbury Fletcher and by virtue of a quitclaim deed executed by the plaintiff-appellants on December 6, 1956. Barbara Jean died without issue in March of 1974, having conveyed the lands in controversy to Betty Roach by warranty deed dated September 12, 1968. The appellants contend that paragraph three of I. N. Fletcher’s will created a life estate with alternative contingent remainders, so that the testator retained a divestible reversion which, when Barbara Jean died without having heirs of her body, but surviving her father Asbury, vested the fee title in the appellants by virtue of the residuary clause of I. N. Fletcher’s will. On the other hand, the Hurdles contend that their title comes through Asbury Fletcher as a contingent remainderman under the will of I. N. Fletcher, but that his heirs took as remaindermen, and the interest of all the heirs merged in Barbara Jean through the quitclaim deed to her in December, 1956. That deed was entitled “Quitclaim Deed” and by it the plaintiff-appellants did thereby “grant, sell and quitclaim unto the said Barbara Jean . . . the following *644lands,” to wit:
All of our interest and possibility of remainder by reason of the will of our Grandfather, recorded in Probate Record Book 1, at page 116, Records of Craighead County Lake City District, as to [the lands in controversy].
The appellees alleged, but did not prove, that at the time of the deed to Barbara Jean, her grantors knew that she was incapable of bearing children. Jury trial was waived and the cause was submitted to the court on the pleadings, stipulations of counsel and oral testimony. The circuit judge found that appellants had no interest in the land in controversy and dismissed the complaint and intervention. The judgment was based upon oral findings of the circuit judge. Among other things, he found that:
I. N. Fletcher, by specifically listing and naming the subject property, attempting to convey it to his granddaughter Barbara Jean, for her life, then to her children, and if no children, to Asbury Fletcher and his heirs, did divest himself of the subject property to the heirs of Asbury Fletcher in fee, whether by a vested remainder or to the heirs of Asbury Fletcher, or his devisee, of the reversionary interest to the heirs of Asbury Fletcher. I. N. Fletcher intended to, and did, divest himself of the property by paragraph three of his will and the property did not constitute a part of the residual estate disposed of in paragraph seven.
We agree with appellants that the circuit court erred in treating paragraph three of the will as creating a vested remainder, either in Asbury Fletcher, who predeceased the life tenant, or in his heirs. Of course, the devise to Barbara Jean Fletcher for life, “then to the heirs of her body, if any,” vested only a life estate in Barbara Jean, with remainder to the heirs of her body. Ark. Stat. Ann. § 50-405 (Repl. 1971). The words “if any,” are certainly indicative that any remainder in the heirs of the body of Barbara Jean was contingent, if there could otherwise have been any doubt about the matter.
*645A remainder is contingent when the remainderman cannot be ascertained until the death of the life tenant and no title passes until the happing of the contingency, i.e., the death of the life tenant. Eversmeyer v. McCollum, 171 Ark. 117, 283 S.W. 379. Where the estate in remainder is limited to take effect either to a dubious or uncertain person or upon a dubious and uncertain event, the remainder is contingent. Wallace v. Wallace, 179 Ark. 30, 13 S.W. 2d 810. Where the right of the remainderman to succeed to the enjoyment of the estate depends upon some contingency which may never arise or where the person who is entitled to succeed to possession is not, and may never be, ascertained, or is not in being, the remainder is contingent. Hurst v. Hilderbrandt, 178 Ark. 337, 10 S.W. 2d 491; Wise v. Craig, 216 Ark. 144, 226 S.W. 2d 347. It is the uncertainty of the right of enjoyment and not the uncertainty of actual enjoyment that renders a remainder contingent. National Bank of Commerce v. Ritter, 181 Ark. 439, 26 S.W. 2d 113. Where the persons who may take under a will are uncertain and cannot be ascertained until the life tenant dies, the remainder is contingent. National Bank of Commerce v. Ritter, supra. See also, Steele v. Robinson, 221 Ark. 58, 251 S.W. 2d 1001 (overruling Deener v. Watkins, 191 Ark. 776, 87 S.W. 32, in Hurst v. Hilderbrandt, supra, viz:
The distinction between contingent and vested remainders is well made by a quotation from 23 RCL 500, § 32, in Hurst v. Hilderbrandt, supra, viz:
The fundamental distinction between the two kinds of remainders is that in the case of vested remainder, the right to the estate is fixed and certain, though the right to possession is deferred to some future period, while, in the case of a contingent remainder, the right to the estate as well as the right to the possession of such estate is not only deferred to a future period, but is dependent on the happening of some future contingency. The broad distinction between vested and contingent remainders is this: In the first there is some person in esse known and ascertained who, by the will or deed creating the estate, is to take and enjoy the estate, and whose right to such remainder no contingency can defeat. In the second it depends upon the happening of a contingent event, *646whether the estate limited as a remainder shall ever take effect at all. The event may either never happen, or it may not happen until after the particular estate upon which it depended shall have been determined, so that the estate in remainder will never take effect.
That the remainder to the heirs of the body of Barbara Jean was contingent is beyond cavil. Appellees do not contend otherwise.
Turning then to the subsequent clause in paragraph three of the will, and applying the well-established rules of property distinguishing between vested and contingent remainders, we come to the inevitable conclusion that any remainder in Asbury Fletcher was a contingent remainder, because the remainder could not possibly have vested unless Barbara Jean predeceased him without having heirs of her body. Any estate in Asbury Fletcher was necessarily dependent upon the happening of this contingency. The remainder was obviously to a dubious or uncertain person or upon a dubious or uncertain event. The person or persons who might take under this clause of the will were uncertain and could not be ascertained until the death of the life tenant. If Barbara Jean had left an heir of her body, the remainder over would have been gone forever, insofar as Asbury Fletcher or his heirs are concerned. That contingency would have defeated any remainder in Asbury Fletcher and no estate would ever have vested in him. See Hurst v. Hilderbrandt, supra; Wise v. Craig, supra. In the absence of any showing to the contrary there is a presumption that a woman may have issue so long as life continues. Wise v. Craig, supra. Cf. Steele v. Robinson, supra; Greer v. Parker, 209 Ark. 553, 191 S.W. 2d 584. As previously pointed out, there was no evidence to indicate that Barbara Jean was incapable of bearing children.
If there were any lingering doubt about the contingency of the remainder to Asbury Fletcher, the use of the word “then” immediately following the creation of the life estate in Barbara Jean denotes the time the fee would vest, i.e., at the time of Barbara Jean’s death. Reynolds v. Nicks, 205 Ark. 1046, 172 S.W. 2d 239. Where the interest of a remainderman is contingent upon his surviving the life tenant and he dies dur*647ing the continuance of the life estate, he takes no interest in the land under the remainder and no interest devolves upon his heirs. Cox v. Danehower, 211 Ark. 696, 202 S.W. 2d 200; Wise v. Craig, supra. It is clear that the interest of Asbury Fletcher was contingent upon his surviving Barbara Jean.
Appellees argue, however, that the contingent remainder to Asbury Fletcher descended to his heirs at law. In advancing this argument, they attempt to distinguish Wise v. Craig, supra. But the rules there announced clearly apply in this case. See also, Cox v. Danehower, supra.
Appellees seize upon 33 Am. Jur. 618, § 152, for a qualification of the general rule that a contingent remainder does not pass by descent. The application of the principle espoused by appellees depends, however, upon the certainty of the person who is to take and the lack of necessity for his surviving some particular time or event as a part of the contingency upon which the remainder is intended to take effect. It is unnecessary for us to pass on the validity of the rule for which appellees contend, because the clear language of the will required that Asbury Fletcher survive his daughter Barbara Jean before any estate vested in him. A contingent remainder can hardly become vested in a person who is not in being. The only way that any contrary intention could be found in this clause of the will would be by resort to an impermissible construction of the words “his heirs and assigns” following the naming of Asbury Fletcher. Of course, these words cannot be more than words of limitation. It is presumed that the word “heir” is used in its primary legal sense, i.e., as a word of limitation, in the absence of qualifying or explanatory words which are repugnant to the acceptance of the word in its strict legal sense. Ryan v. Ryan, 138 Ark. 262, 211 S.W. 183. In determining the intention of the testator, the question is not what the testator meant, but it is the meaning of his words. Galloway v. Darby, 105 Ark. 558, 151 S.W. 1014. The addition of the words, “and assigns,” is merely declaratory of the power of alienation which the taker possesses without them and they cannot operate to enlarge the grant or defeat its express limitations. Watson v. Wolff-Goldman, 95 Ark. 18, 128 S.W. 581. See also, Alexander v. Morris & Co., 168 Ark. 31, 270 S.W. 88. The words “heirs and assigns” are to be taken in their technical sense to denote *648the character of the estate or the extent of the interest to be taken by a named devisee and, as such, are words of limitation, and cannot be words of substitution. Galloway v. Darby, supra. The rule in Shelley’s case has such an impact in Arkansas that it is to be applied, regardless of the intention of a testator or grantor, who cannot disavow the rule, even in express words. Bishop v. Williams, 221 Ark. 617, 255 S.W. 2d 171. In other words, this language cannot be taken as a substitution of the heirs and assigns of Asbury Fletcher, for him, as a remainderman, if he should not be living at the time of the death of Barbara Jean without heirs of her body.
We find nothing in Ark. Stat. Ann. § 61-101 (1947)1 to support the argument of appellees. The definition of real estate in Ark. Stat. Ann. § 61-120 (1947)1 eliminates any such possibility. One cannot be “seized or possessed” of a contingent remainder as is required when those two sections are read together. Furthermore, Ark. Stat. Ann. § 61-137 (Repl. 1971) is inapplicable to this situation because it was not in effect at any time critical to the issues here.
The characterization of the interest remaining after the death of Barbara Jean and its disposition remain to be determined. It is quite clear that under Arkansas law a grant to one for life with remainder to the heirs of his body leaves a divestible reversion in the grantor, which would remain in him if the grantee should die without bodily heirs during the lifetime of the grantor. Hutchison v. Sheppard, 225 Ark. 14, 279 S.W. 2d 33; Davis v. Davis, 219 Ark. 623, 243 S.W. 739 (in which we corrected a misnomer of this reversion as a possibility of reverter in LeSieur v. Spikes, 117 Ark. 366, 175 S.W. 413).
But here we have alternative remainders. Alternative remainders, limited upon a single precedent estate, are always contingent. Wise v. Craig, supra; Cox v. Danehower, supra. It would be helpful to examine the nature of a reversion, as distinguished from a remainder, and to consider the effect of the failure of alternative contingent remainders. The distinction was clearly made in Wilson v. Pharris, 203 Ark. 614, 158 S.W. 2d 274. There we pointed out that a remainder *649is an estate limited to take effect in possession immediately after the expiration of a prior estate created at the same time and by the same instrument. We also pointed out that a reversion is the residue of an estate left in the grantor to commence in possession after the determination of some particular estate granted out by him and that, unlike a remainder, which must be created by deed or devise, a reversion arises only by operation of law. Furthermore, in quoting from 23 RCL p. 111, Reversions, we said:
... At common law, if a man seised of an estate limits it to one for life, remainder to his own right heirs, they take not as remaindermen, but as reversioners; and it will be, moreover, competent for him, as being himself the reversioner, after making such a limitation, to grant away the reversion. The same result is reached when an ultimate remainder in fee is contingent. Until it vests there is a reversion in the grantor or devisor md his heirs.
By application of the rules of property hereinabove set out, I. N. Fletcher created a life estate in Barbara Jean, alternative contingent remainders to the heirs of the body of Barbara Jean and Asbury Fletcher and left in himself a reversion. Such a reversion is divestible and may pass by deed or inheritance and, in the absence of a grant by deed in the lifetime of the creator, it will pass by will, and in the absence of a specific devise, will pass under the residuary clause of the will of the holder of the reversion. Wilson v. Pharris, supra. Luster v. Arnold, 249 Ark. 152, 458 S.W. 2d 414; Hutchison v. Sheppard, supra; Davis v. Davis, supra; Nuckolls v. Mantooth, 234 Ark. 64, 350 S.W. 2d 512; Core, Transmissibility of Certain Contingent Future Interests, 5 Ark. Law Rev. 111, 125 (1951). Thus, the reversionary interest in I. N. Fletcher passed under the residuary clause in the will to Babe Fletcher and Asbury Fletcher. This made Babe Fletcher the holder of an undivided one-half interest in fee upon the death of Barbara Jean. Consequently, the holding of the circuit court was erroneous as to him.
The reversionary interest in I. N. Fletcher could not possibly have passed to Asbury Fletcher under paragraph *650three of the will because to so hold would mean that no remainder, contingent or otherwise, was created in Asbury Fletcher by paragraph three. The basis of the trial court’s holding in this respect was that, by making the devise to Asbury Fletcher and his heirs, the testator divested himself of the property to the heirs of Asbury Fletcher in fee, regardless of whether the interest was a vested remainder or a reversionary interest. The fallacy of this holding has been pointed out in our treatment of the signficance of the word “heirs” in paragraph three.
We cannot agree, however, that the plaintiff-appellants are not bound by their quitclaim deed to their sister Barbara Jean. It is true that ordinarily a contingent remainder cannot be conveyed by deed. Hurst v. Hilderbrandt, supra; National Bank of Commerce v. Ritter, supra. But see, Clark v. Rutherford, 227 Ark. 270, 298 S.W. 2d 327. On the other hand, the conveyance by the plaintiff-appellants of all their interest as to the property would carry the reversionary interest, even if they didn’t realize they had it. Nuckolls v. Mantooth, supra; Core, Transmissibility of Certain Contingent Future Interests, 5 Ark. Law Rev. 111, 121. Although we would agree that the interest passed to the plaintiff-appellants by descent from Asbury Fletcher, vye do not agree with these appellants that the words “by reason of the will of our grandfather” limit the words “all of our interest.” The limitation is upon the possibility of remainder. This divestible reversion was a present and not a prospective interest held by the plaintiff-appellants. So even if the limitation is upon “our interest,” the result is the same. In this respect, the holding of the circuit judge was correct, and his judgment should be affirmed to that extent.
This brings us to the cross-appeal. Appellees filed a third party complaint against the executor of the estate of Barbara Jean. This pleading was authorized by order of the circuit court. In it the appellees alleged that the property was conveyed to their decedent by general warranty deed dated September 12, 1968, executed by Barbara Jean and that if appellees should be evicted and ousted from the property or any part thereof, the eviction would be a breach of the covenants of warranty in that deed, that the third party defen*651dants had taken no action to defend the suit and that, if evicted, they were entitled to recover from the third party defendant either the consideration of $30,000 given for that deed for breach of warranty or a fraction thereof proportionate to the value of the property from which they were evicted and ousted.
The circuit' court dismissed that third party complaint and, properly so, upon the court’s holding on the other points. In view of the disposition we make of the case on direct appeal, this part of the judgment must be reversed on cross-appeal. The cause of action of appellants did not accrue until the death of Barbara Jean. Luster v. Arnold, supra. It is true that a covenant of warranty is not broken until eviction, but a constructive eviction is sufficient, so we do not agree with the cross-appellees that the action was prematurely brought. See Security Bank v. Davis, 215 Ark. 874, 224 S.W. 2d 25; Smiley v. Thomas, 220 Ark. 116, 246 S.W. 2d 419; Ark. Stat. Ann. § 27.1134.1 (Supp. 1975).
The judgment of the circuit court is affirmed on direct appeal as to the plaintiff-appellants and reversed and remanded for the entry of a judgment in favor of appellant Babe Fletcher consistent with this opinion. The judgment of the circuit court on the third party complaint is reversed on cross-appeal and the cause is remanded with directions to reinstate the third party complaint.
Harris, C.J., and Jones and Byrd, JJ., dissent.