See also: opt in

Contents

EnglishEdit

EtymologyEdit

From opt +‎ in

AdjectiveEdit

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.

AntonymsEdit

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AnagramsEdit