Definition, Meaning & Synonyms
opt-in
verb (used without object)
/ˈɒpt ɪn/

Definition
To agree to participate in something, usually in relation to receiving information or services.

Examples
- You must opt-in to receive our newsletter.
- Many people choose to opt-in for personalized recommendations.
- This service requires you to opt-in before you can access additional features.

Meaning
The act of selecting or consenting to allow something to happen, often used in the context of marketing and communications.

Synonyms
- consent
- subscribe
- join