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Synonyms

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American  
[aps] / æps /

noun

  1. Architecture. a semicircular or polygonal termination or recess in a building, usually vaulted and used especially at the end of a choir in a church.

  2. Astronomy. an apsis.


apse British  
/ æps, ˈæpsɪdəl, æpˈsaɪdəl /

noun

  1. Also called: apsis.  a domed or vaulted semicircular or polygonal recess, esp at the east end of a church

  2. astronomy another name for apsis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • apsidal adjective
  • apsidally adverb

Etymology

Origin of apse

First recorded in 1815–25; variant of apsis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A room near the church’s apse contains fragments of a sarcophagus believed to be St. Neophytos’s.

From The Wall Street Journal • Nov. 28, 2025

There is still scaffolding around much of the eastern end, and in coming years the outside walls of the apse and sacristy will need treatment.

From BBC • Nov. 29, 2024

The floor plans of Aksumite churches generally followed that of Byzantine churches or basilica, meaning they were oblong in shape with a rounded apse at one end.

From Textbooks • Apr. 19, 2023

Their bark flakes and shreds, and trunks soar to an apse raised over centuries.

From Seattle Times • Mar. 14, 2022

During the summer of 1270 the chapels in the apse and most of the piers and buttresses of the choir were finished.

From "Cathedral: The Story of Its Construction" by David Macaulay