opt in

verb

To choose to participate in something

Opposite
opt out
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Meanings

verbopt in (third-person singular simple present opts in, present participle opting in, simple past and past participle opted in)

present singular third person opts in · participle present opting in · participle past opted in · past opted in

  1. To choose to participate in something

Synonyms & antonyms

Opposite
opt out

Origin

From opt + in.

Full word history & related roots →

Translations

Finnish päättää osallistua, ilmoittautua
  • päättää osallistuaTo choose to participate in something
  • ilmoittautuaTo choose to participate in something
  • osallistuaTo choose to participate in something
French opter, consentir
  • opterTo choose to participate in something
  • consentirTo choose to participate in something
German hineinoptieren
  • hineinoptierenTo choose to participate in something
Polish optować
  • optowaćTo choose to participate in something
Russian уча́ствовать, присоединя́ться
  • уча́ствовать (učástvovatʹ)To choose to participate in something
  • присоединя́ться (prisojedinjátʹsja)To choose to participate in something
Spanish optar por participar
  • optar por participarTo choose to participate in something
Cite this entry
APA

opt in. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/opt%20in

MLA

“opt in.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/opt%20in. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “opt in,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/opt%20in.

Source: opt in on Wiktionary, CC BY-SA 4.0.