companionship vs workgroup

companionship

noun
  • An organized group of people. 

  • The state of having or being a companion. 

  • The state of being a journeyman. 

workgroup

noun
  • A group of workers engaged in a series of collaborative tasks who usually work together. 

  • A computer network created for use by such groups. 

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