CEI

English

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CEI

Wikipedia

CEI

Initialism of Central European Initiative.
Initialism of Cycle Engineers' Institute, one of three screw thread standards contributing to the Whitworth threads standards set.

CEI

(BDSM) Initialism of cum-eating instructions: written or recorded instructions directing a submissive to consume semen.
- 2014, “Erotic Girl 4 ALL Your Pleasures Are You SERIOUS About EDGING? JOI ? CEI ? Let's See How Much Will Power You Have”, in alt.penthouse.sex.femdom:
- 2015 May 23, Humiliate You, “Are You A Little Dick Man?? WANT Little Dick Humiliation - JOI with A Side of CEI”, in alt.sex.femdom‎ (Usenet), retrieved 2 February 2022:
(uncommon) Initialism of child exploitation images.
- 2018, Robert W. Gehl, Weaving the Dark Web: Legitimacy on Freenet, Tor, and I2P, Cambridge, Massachusetts: MIT Press, →ISBN, page 228:
  Past operations, such as those that took down the child exploitation site Playpen, or current efforts to arrest purveyors of CEI on Freenet, seek to chase out what one Dark Web site admin called the “true black sheep” of these networks.

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Romanian

Initialism of carte electronică de identitate.

CEI f or n (plural CEI-uri)

Typically invariable as a feminine noun.

More information singular, plural ...

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English