(1):

(n.) A covetous, grasping, mean person; esp., one having wealth, who lives miserably for the sake of saving and increasing his hoard.

(2):

(n.) A wretched person; a person afflicted by any great misfortune.

(3):

(n.) A despicable person; a wretch.

(4):

(n.) A kind of large earth auger.