I. ˈsapə(r) noun
( -s )
Etymology: sap (III) + -er
: one that saps: as
a. : a member of a military engineer unit organized, trained, and equipped primarily to execute sapping and other field fortification work
b. : an engineer that lays, detects, and disarms mines
II. noun
( -s )
Etymology: sap (IV) + -er
: a sucking insect that punctures plants to feed on the sap (as various bugs or plant lice)