Question 1

What does "opt in" mean?

Accepted Answer

To actively choose to take part in a programme, system, or service, especially when participation is not automatic.

Question 2

How do you use "opt in" in a sentence?

Accepted Answer

You can opt in to receive our monthly newsletter by ticking the box below.

Question 3

Is "opt in" formal or informal?

Accepted Answer

"opt in" is register-neutral — appropriate in both casual and formal contexts. Common in marketing, data privacy (GDPR), healthcare, and legal contexts. An 'opt-in' system requires active consent. The opposite is 'opt-out'. Widely used in digital contexts (email lists, cookie consent).

opt in

Verwandte Ausdrücke

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