flat edge
Linear boundary line
A flat edge is the straight, level side of an object, as opposed to a curved or beveled one.
The term appears in contexts from woodworking to geometry: Use the flat edge of the ruler to draw a straight line.
A knife's flat edge is the unsharpened side opposite the blade.
- bladeFlat cutting edge
- knife bladeSharp metal portion
- straightNot curved or crooked
- rimCircular outer boundary
- borderOuter edge or limit
margin · ledge · razor · box cutter · crisp · clean · clean cut · level · smooth · plane · knife · sharp · ruler · horizon · table · shelf · cutting · precision
- puzzle piecescorner piece, center piece, tab, knob, socket
- Guard Positionsen garde, high guard, low guard, prime, octave
geometric curvature
flat edgecurved edge
Non-linear boundary line
rounded edge · arc · curve · curved · scalloped edge
flat, edge, flats, flatly, flatten, flattened, flattening, flatness, flatter