container vs packing case

container

noun
  • A very large, typically metal, box used for transporting goods. 

  • A bundle consisting of operating system, application code and dependencies to be run sandboxed inside a virtualized environment; (by extension) the environment itself. 

  • An abstract data type whose instances are collections of other objects. 

  • An item in which objects, materials or data can be stored or transported. 

  • Someone who contains; something that contains. 

  • Any user interface component that can hold further (child) components. 

  • Someone who holds people in their seats or in a (reasonably) calm state. 

  • A file format that can hold various types of data. 

packing case

noun
  • A large, sturdy box or wooden crate used for the secure shipment of goods. 

How often have the words container and packing case occurred in a corpus of books? (source: Google Ngram Viewer )