As used in the Kansas probate code, unless the context otherwise indicates:

(1) “District court” means judge of the district court when that meaning is necessary to effectuate the general purpose of the provisions of the Kansas probate code.

(2) “Personal representative” includes executors, administrators, administrators with the will annexed, administrators de bonis non, conservators and guardians.

(3) “Fiduciary” includes personal representatives, trustees and surviving partners administering their trusts.

(4) “Person,” as applied to fiduciaries, includes banks and other corporations authorized by law to act in a fiduciary capacity in this state.

(5) “Simplified administration” means administration under the Kansas simplified estates act contained in Kan. Stat. Ann. §§ 59-3201 through 59-3206, and amendments thereto.

(6) “Supervised administration” means administration by a personal representative under the Kansas probate code, exclusive of the Kansas simplified estates act, the Kansas informal administration act or refusal to grant letters of administrative procedures.

(7) “Informal administration” means administration under the Kansas informal administration act.

(8) “Valid settlement agreement” means a written and acknowledged instrument which affects the administration or distribution of the estate and which is entered into by all interested heirs, devisees, legatees and persons whose interests are affected by the settlement agreement, all of whom must be competent or authorized to enter into such agreement.

(9) The masculine gender includes the feminine.

(10) The singular number includes the plural.