squinch

A structure, such as a section of vaulting or corbeling, set diagonally across the interior angle between two walls to provide a transition from a square to a polygonal or more nearly circular base on which to construct a dome.

To squeeze, twist, or draw together.

In architecture, a small arch, or a series of arches, corbeled out, thrown across an angle, as in a square tower to support the side of a superimposed octagon.

A dialectal variant of quince.

A small arch thrown across the corner of a square room to support a superimposed mass, as where an octagonal spire or drum rests upon a square tower; — called also sconce, and sconcheon.

A structure constructed between two adjacent walls to aid in the transition from a polygonal to a circular structure; as when a dome is constructed on top of a square room.

to scrunch up (one’s face)

crouch down

cross one’s eyes as if in strabismus

a small arch built across the interior angle of two walls (usually to support a spire)