title: Need clarification on term "Module" in Swift
body: <p>I am new to Swift programming, and I am having a little trouble understanding the definition of a module. Apple's Swift documentation states:</p>
  
  <blockquote>
    <p>A module is a single unit of code distribution—a framework or application that is built and shipped as a single unit and that can be imported by another module with Swift’s import keyword.</p>
  </blockquote>
  
  <p>The terminology above is confusing to me. Can someone explain in layman's terms of what a module in Swift is? Thank you for your patience :).</p>