Dictionary > English Dictionary > Definition, synonym and antonym of opt-in
Meaning of opt-in by Wiktionary Dictionary



    opt + in


    opt-in ( not comparable )

    1. Of a selection, the property of having to choose explicitly to join or permit something; a decision having the default option being exclusion or avoidance; used particularly with regard to mailing lists and advertisement .
      They set up an opt-in mailing list, so that those who wanted the notices could subscribe .

    See also

    opt in

    By Wiktionary ( 2009/11/30 13:21 UTC Version )


    From opt + in .