A sales system under which the salesperson receives a commission on his or her own sales and a smaller commission on the sales from each person he or she convinces to become a salesperson.

Multi-level (or multilevel) governance is a term used to describe the way power is spread vertically between levels of government and horizontally across multiple quasi-government and non-governmental organizations and actors.

In electronics, a multi-level cell is a memory cell capable of storing more than a single bit of information, compared to a single-level cell, which can store only one bit per memory cell.

A multi-level converter or (multi-level inverter) is a method of generating high-voltage wave-forms from lower-voltage components.