We found 5 dictionaries that define the word opt outs:

General (4 matching dictionaries)

1. opt-outs, opt-outs, opt outs: Collins English Dictionary
2. opt-outs: Wordnik
3. opt-outs: Wiktionary
4. opt-outs: TheFreeDictionary.com

Computing (1 matching dictionary)

5. opt-outs: Encyclopedia

(Note: See opt_out as well.)

Definitions from Wiktionary (opt out) ▸ verb:  To choose not to participate in something. ▸ Also see opt_out ▸ Words similar to opt outs ▸ Usage examples for opt outs ▸ Idioms related to opt outs ▸ Wikipedia articles (New!) ▸ Words that often appear near opt outs ▸ Rhymes of opt outs ▸ Invented words related to opt outs