Definitions

1. noun

A semicircular or polygonal recess in a church or other building, especially above the chancel.

“The grand apse of the cathedral towered above the congregation.”

2. verb

To form or shape into an apse.

“The architect began to apse the new church design, creating a beautiful semicircular recess.”

3. verb

To bend or curve, especially into a semicircular shape.

“The river began to apse around the bend, creating a beautiful arc.”