- moduleA self-contained component of a system, often interchangeable, which has a well-defined interface to the other components.
- moldA hollow form or matrix for shaping a fluid or plastic substance.
- mouldCommonwealth standard spelling of mold.
- modulusThe base with respect to which a congruence is computed.
- moulderOften followed by away or down: to cause (something) to decay or rot, or to crumble to pieces.