plural of ceiling

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

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

plural of glass ceiling