sapper

A military engineer who specializes in sapping and other field fortification activities.

A military engineer who lays, detects, and disarms mines.

A chisel used in some sawing-machines to cut away waste or sap-wood and reduce a log to a cylindrical shape.

Any insect which sucks the sap of plants, as the rice-sapper.

One who saps; specifically, a soldier employed in the building of fortifications, the execution of field-works, and the performance of similar operations.

One who saps; specifically (Mil.), one who is employed in working at saps, building and repairing fortifications, and the like.

One who saps; specifically, one who is employed in working at saps, building and repairing fortifications, and the like. Often known as a combat engineer or military engineer.

an officer or private of the Royal Engineers.

a military engineer who lays or detects and disarms mines

a military engineer who does sapping (digging trenches or undermining fortifications)