For purposes of the Student Discipline Act, unless the context otherwise requires:

(1) Long-term suspension means the exclusion of a student from attendance in all schools within the system for a period exceeding five school days but less than twenty school days;

(2) Expulsion means exclusion from attendance in all schools within the system in accordance with section 79-283;

(3) Mandatory reassignment means the involuntary transfer of a student to another school; and

(4) Short-term suspension means the exclusion of a student from attendance in all schools within the system for a period not to exceed five school days.