(a) As used in this article, unless the context otherwise requires:

1. (1) “Dismissal” means dismissal for cause.
2. (2) “Layoff” means separation from a position for lack of funds or lack of work.
3. (3) “Probation” means the period an employee must serve before becoming entitled to permanent employment.
4. (4) “Permanent” means that the employee has a right to continued employment unless dismissed or laid off.