Bloodsucker

1. n. A hard and exacting master, landlord, or money lender; an extortioner.
2. n. Any animal that sucks blood; esp., the leech (Hirudo medicinalis), and related species.
3. n. One who sheds blood; a cruel, bloodthirsty man; one guilty of bloodshed; a murderer.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.