4. (noun)mole a small congenital pigmented spot on the skin
5. (noun)breakwater, groin, groyne, mole, bulwark, seawall, jetty a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
6. (noun)mole small velvety-furred burrowing mammal having smalleyes and fossorial forefeet
Definitions of 'mole'
Webster 1913 Dictionary
1. (noun)mole a spot; a stain; a mark which discolors or disfigures
4. (noun)mole a mound or massive work formed of masonry or large stones, etc., laid in the sea, often extended either in a rightline or an arc of a circle before a port which it serves to defend from the violence of the waves, thus protecting ships in a harbor; also, sometimes, the harbor itself
Definition of mole 
