opt in
verb
(intr, adverb)
to choose to be involved in or part of a scheme, etc
Words nearby opt in
opsonization,
opsonize,
opsonocytophagic,
opsonometry,
opt,
opt in,
opt out,
opt-,
opt.,
optative,
optesthesia
Example sentences from the Web for opt in
Lulu, the mobile dating app for women, has changed its system to allow men to opt-in.
Provide an opt-in system for religious organisation who wish to conduct marriages for same-sex couples.