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opt in

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phrasal verb [intransitive]
Word Forms
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present tense
I/you/we/theyopt in
he/she/itopts in
present participleopting in
past tenseopted in
past participleopted in

or opt into

  1. to decide that you want to do something or be involved in something

    Members are given the choice to opt in.

    opt into something:

    The British government was reluctant to opt into such a system.

See also main entry: opt

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