team vs team up

team

verb
  • To form together into a team. 

  • To go together well; to harmonize. 

  • To convey or haul with a team. 

  • To form a group, as for sports or work. 

  • To give work to a gang under a subcontractor. 

noun
  • A set of draught animals, such as two horses in front of a carriage. 

  • Any group of people involved in the same activity, especially sports or work. 

  • A group of people who favor one side of a binary debate that is divided and lacks a well-established clear consensus. 

team up

verb
  • To join into a team, or into teams. 

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