Definition of opt in English:

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Pronunciation: /ɒpt/


[no object]
Make a choice from a range of possibilities: consumers will opt for low-priced goods [with infinitive]: pupils opting to continue with physics
More example sentences
  • It also means exercising regularly and opting for active living choices rather than the lazy ones.
  • Parents opting for single-sex schools take other factors into account, though.
  • Fewer students than ever are opting to study maths at a higher level.
choose, select, pick, pick out, decide on, go for, settle on, plump for/on, single out, take, fix on;
British  pitch on

Phrasal verbs


opt in

Choose to participate in something: the database would not include a person’s name unless he opted in
More example sentences
  • Icelanders have the right to opt out of the scheme but Mannvernd, an organisation set up to stop the database going ahead, insists that the law should be reversed so that only medical information from citizens who chose to opt in is used.
  • For operators that choose to opt in, Government would buy their equipment and claims.
  • A green pricing option is best suited to municipal utility services that choose not to opt in to competition.

opt out

Choose not to participate in something: you can opt out of the state pension scheme
More example sentences
  • Last spring, he opted out of football drills and chose instead to pitch for the USC baseball team, taking the hill in nine games.
  • A little-debated provision in the 1996 welfare reform law mandates a lifetime ban on welfare and food stamps for drug offenders, although New York is one of eight states that have opted out of the ban.
  • After the arrangements were made, Love opted out of the event altogether, as she reportedly ‘missed her plane’ from Los Angeles.
British 2.1 (Of a school or hospital) decide to withdraw from local authority control: opting out might allow schools greater freedom
More example sentences
  • Primary schools, for example, will be allowed to opt out of local authority control and become ‘foundation’ schools with control of their own budgets.
  • Moreover, schools and hospitals were encouraged to opt out of local authority control, compete with one another, and manage their own budgets.
  • The latter were state schools that opted out of local authority control and voted to obtain funding directly from the government.


Late 19th century: from French opter, from Latin optare 'choose, wish'.

Words that rhyme with opt

adopt, co-opt, Copt

For editors and proofreaders

Line breaks: opt

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