Whether properly assigned or not this court may consider plain error upon the record under Rule 52(b) of the Tennessee Rules of Criminal Procedure. State v. Ogle, 666 S.W.2d 58 (Tenn. 1984). Before an error may be so recognized, it must be “plain” and must affect a “substantial right” of the accused. The word “plain” is synonymous with “clear” or equivalently “obvious.” United States v. Olano, 507 U.S. 725, 732 (1993). Plain error is not merely error that is conspicuous, but especially egregious error that strikes at the fairness, integrity, or public reputation of judicial proceedings. See State v. Wooden, 658 S.W.2d 553, 559 (Tenn. Crim. App. 1983). In State v. Adkisson, 899 S.W.2d 626, 639 (Tenn. Crim. App. 1994), this court defined “substantial right” as a right of “fundamental proportions in the indictment process, a right to the proof of every element of the offense and . . . constitutional in nature.” In that case, this court established five factors to be applied in determining whether an error is plain:
(a) The record must clearly establish what occurred in the trial court;
(b) a clear and unequivocal rule of law must have been breached;
(c) a substantial right of the accused must have been adversely affected;
(d) the accused [must not have waived] the issue for tactical reasons; and
(e) consideration of the error must be "necessary to do substantial justice."
Id. at 641-42. Our supreme court characterized the Adkisson test as a “clear and meaningful standard” and emphasized that each of the five factors must be present before an error qualifies as plain error. State v. Smith, 24 S.W.3d 274, 282-83 (Tenn. 2000).