"Part" is a versatile term referring to a component or segment of a larger whole. It can denote physical pieces of an object, sections of a system, or stages in a process. In manufacturing, parts are individual elements assembled to create a product. Linguistically, a part may represent a grammatical unit (e.g., parts of speech). The concept extends to abstract domains like roles ("playing a part") or divisions (e.g., "part two of a series"). Its meaning shifts with context—mechanical parts differ from theatrical parts—but consistently implies incompleteness without the whole. The term underscores interdependence, as parts derive purpose from their relationship to the entirety they compose.