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

plural of ceiling

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.

simple past tense and past participle of ceil

(in combination) Having some specified type of ceiling

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