Mar 4, 2015
= to choose not to be involved, or to choose to stop being involved in something. opt + out (+ of) "The UK might opt out of the new EU agreement" "More and more schools are choosing to opt out of the national curriculum"
Mar 4, 2015
= to choose to be involved in something "We're setting up a new space project which involves a trip to Mars. If you have #2,000,000,000 you can opt in, if you want". Also: Opt into "By opting into this program, you agree never to return to earth again" http://wp.me/P4IuUx-2TM
Mar 4, 2015
= to choose opt + for + noun "North Korea may opt for long range missiles in response to what it believes to be increasing provocation from South Korean military exercises" http://wp.me/P4IuUx-2TI