| Answer | Crossword Clue |
|---|---|
| seams | line, groove, or ridge formed by the abutment of edges |
| seam | line, groove, or ridge formed by the abutment of edges |
| piend | the line, ridge, or hip formed by the meeting of two surfaces at an exterior angle |
| piends | the line, ridge, or hip formed by the meeting of two surfaces at an exterior angle |
| arris | the line, ridge, or hip formed by the meeting of two surfaces at an exterior angle |
