"affinity group." YourDictionary, n.d. Web. 21 June 2018. <http://www.yourdictionary.com/affinity-group>.
affinity group. (n.d.). Retrieved June 21st, 2018, from http://www.yourdictionary.com/affinity-group
A special interest group. This is a marketing term for a group of people with similar interests.
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