architecture ( підручник Л.Морська)

an arched ceiling usually made of stone or wood

a succession of contiguous arches, with each arch supported by a colonnade of columns or piers

The porch or vestibule of a temple,  the inner area of the portico of a Greek or Roman temple,

a vertical curved structure that spans an elevated space and may or may not support the weight above it. may be curved, pointed, semicircular

 the middle of the three main divisions of an entablature above the architrave and below the cornice

the superstructure of moldings and bands which lies horizontally above columns, resting on their capitals. is divided into the architrave, the frieze , and the cornice.

the lowest part of the entablature that rests on the capitals of columns.

... or Chapiter, head, or topmost member of a colonnette, column, pilaster, pier, etc., defined by distinct architectural treatment, and often ornamented.

 hemispherical structure evolved from the arch, usually forming a ceiling or roof. 

generally any horizontal decorative molding that crowns a building or furniture element, situated above the frieze and below the pediment

the generally triangular piece in the front of Classical temples above the entablature

the technical term for a column and its related elements - in particular its top (the capital). can be Doric, Ionic, Corinthian

... or pillar is frequently used to support beams or arches on which the upper parts of walls or ceilings rest. it is composed of capital, shaft, base