443f18ee_ndard_Metrics___Analytics_Talk__WAA_Definition
[Compliant] Yes [Term] Return Visitor [GA Definition] Same as WAA Note: While GA does share the same definition for a return visitor it does not does not count the number of returning unique people (visitors) that have visited the site during the reporting period. GA counts the number of VISITS generated by people coming . GA identifies a return visitor as any visit generated by a person who’s unique identifier cookie was set prior to the reporting period. [WAA Definition] 
The number of Unique Visitors with activity consisting of a Visit to a site during a reporting period and where the Unique Visitor also Visited the site prior to the reporting period.
Google Analytics Compliance with WAA Standard Metrics - Analytics Talk
WAA Definition