component (EN)
noun

noun “component”

sg. component, pl. components or uncountable
  1. a part that helps a machine or device to work
    The battery is an essential component of a smartphone.
  2. (figurative) an essential part of something
    Trust is a crucial component of any strong relationship.
  3. a substance that is part of a larger mixture
    Water is composed of two components: hydrogen and oxygen.