Definitions of affiliate:

• noun:   a subsidiary or subordinate organization that is affiliated with another organization

  Example: "Network affiliates"

• noun:   a subordinate or subsidiary associate; a person who is affiliated with another or with an organization
• verb:   join in an affiliation

  Example: "The two colleges affiliated"

• verb:   join in an affiliation

  Example: "They affiliated themselves with the organization"

• verb:   keep company with; hang out with

  Example: "She affiliates with her colleagues"