1. to overlap and join the edges of planks so they lie flush
Usage: nautical; carpentry

Examples

• The shipwright carefully syphered the hull planks to create a watertight seal.
• To sypher the boards properly, you must bevel the edges at matching angles.
• The carpenter syphered the deck planking to eliminate gaps.
• Traditional boat builders sypher planks to achieve a smooth surface.
• He learned to sypher wood joints during his apprenticeship.