It may be politically correct to use the term custodian instead of janitor, but when it comes right down to it, the two terms have the same meaning. Both refer to a person who cleans and maintains a building or set of buildings, such as a school, for instance. In fact, most people probably first become aware of the terms while they are children attending a school and realize the job has to do with maintenance and cleaning of school grounds and buildings. Whether it's sweeping the sidewalk, cleaning student desks, raking leaves, trimming plants, vacuuming classrooms, tidying up the cafeteria after lunch, or any of the other chores that must be done to keep school grounds neat, clean, organized, and in good repair, the janitor is the one who is most likely to perform the actual labor. Although many people may look at such work as low status and menial, teachers, in particular, realize the importance of such work, and students are the primary beneficiaries in a school setting. So, regardless of what word is used for the job, the work that individuals performing the job do is important work.