opt in

verb

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

Nearby words

  1. opsonization,
  2. opsonize,
  3. opsonocytophagic,
  4. opsonometry,
  5. opt,
  6. opt out,
  7. opt-,
  8. opt-out,
  9. opt.,
  10. optative

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

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