IPA: /æps/
KK: /æps/
A curved or angled area at the end of a church, often where the altar is located, typically shaped like a half-circle or a polygon.
The church's apse was beautifully decorated with stained glass windows.
Apse comes from the Latin word 'apsis' (meaning arch or vault), which in turn derives from the Greek word 'apsis' (meaning arch or curve). The term refers to a semicircular or polygonal recess, typically found in churches, where the altar is located.
Think of an 'arch' ('apsis') that forms a curved space, which helps you remember that an apse is a curved recess in a church.