Sekirov Dictionary

opt-in

UK /ˈɒptˌɪn/US /ˈɑptˌɪn/

adjective 1
opt in verb 1
forms 3

adjective1

•
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 advertising.
- They set up an opt-in mailing list, so that those who wanted the notices could subscribe.

opt in verb1

To choose to participate in something

forms

opted in · opting in · opts in

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