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opt in

British  

verb

  1. (intr, adverb) to choose to be involved in or part of a scheme, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It requires precincts to opt in, and only catches abuse after it happens.

From Salon Aug. 17, 2026

Non-UK residents on that date must notify Which? by 8 October to opt in, via its claim website.

From BBC Jun. 22, 2026

It also was a first for Green Dot, which typically had created new public charter schools from scratch, one grade at a time, to instill a strong culture of motivated families who assertively opt in.

From Los Angeles Times Jun. 17, 2026

Thus far, nearly all Democratic governors hesitant to opt in have said they will make a decision once they have clarity on rules.

From The Wall Street Journal Jun. 11, 2026

Many countries opt in because money laundering has also become a domestic political and economic concern.

From Crime and Corruption by Samuel Vaknin

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