~ 1
■ noun a straight or arched structure across an interior angle of a square tower, bearing a superstructure such as a dome.
Origin
C15: alt. of obs. scunch , abbrev. of scuncheon .
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~ 2
■ verb chiefly N. Amer.
1》 tense up the muscles of (one's eyes or face).
2》 crouch down.
Origin
C19: perh. a blend of squeeze and pinch .