quoin (n.)
- angle
- apex
- bend
- bifurcation
- bight
- cant
- chevron
- coin
- composing
- composition
- corner
- cornerstone
- crank
- crook
- crotchet
- deflection
- dogleg
- dummy
- fork
- furcation
- furniture
- headstone
- hook
- imposition
- inflection
- justification
- keystone
- knee
- layout
- nook
- point
- setting
- slug
- swerve
- vertex
- zag
- zig
- zigzag