Modules refer to distinct, self-contained units that can be easily integrated or removed from a larger system. Synonyms for modules may vary depending on the context in which they are used. In engineering, modules are often referred to as components, units, or sub-systems. In software development, modules are commonly known as libraries, packages or modules themselves. Educational systems and courses use modules as units, lesson plans, or classes in different schools and universities. Moreover, in the field of biology, modules are referred to as compartments or units of analysis. Synonyms for modules may differ based on the specific context of the subject or discipline, but they all pertain to a self-contained unit of something that can be integrated systematically within a larger system.