Vocabulary includes knowledge of the meaning of single words that represent objects and groups of objects, actions , and qualities of space and time.

See also:
"Vocabulary" is in the UNSPSC Code "60102312"
  Vocabulary activity or resource books

Other /More definition:
Vocabulary includes knowledge of the meaning of single words that represent objects and groups of objects, actions, and qualities of space and time.
List of books: Vocabulary

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