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

(BDSM) Initialism of cum-eating instructions: written or recorded instructions directing a submissive to consume semen. / (uncommon) Initialism of child exploitation images.

The overhead closure of a room. / The upper limit of an object or action. / (aviation) The highest altitude at which an aircraft can safely maintain flight.

present participle of ceil

(idiomatic) An unwritten, uncodified barrier to further promotion or progression, in employment and elsewhere, for a member of a specific demographic group.

Third-person singular simple present indicative form of ceil

(transitive) To line or finish (a surface, such as a wall), with plaster, stucco, thin boards, or similar.

(poetic) A ceiling. / (mathematics) Abbreviation of ceiling.

(mathematics) To set a higher bound.

An informal social gathering where traditional Irish or Scottish folk music is played, with dancing and storytelling.