What is the meaning of squinch?

noun

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

verb

• Crouch down.
• Draw back, as with fear or pain.
  • usage: "she flinched when they showed the slaughtering of the calf"
  • synonyms: flinch, funk, cringe, shrink, wince, recoil, quail
• Cross one's eyes as if in strabismus.
  • usage: "The children squinted so as to scare each other"
  • synonyms: squint