What's the difference between heaver and reaver?

Heaver

Definition:

• (n.) One who, or that which, heaves or lifts; a laborer employed on docks in handling freight; as, a coal heaver.
• (n.) A bar used as a lever.

Example Sentences:

• (1) The slightly heaver device will feature improved photo and video taking, with a greater resolution camera and an HD video recorder.

Reaver

Definition:

• (n.) One who reaves.

Example Sentences:

• (1) His very last book, The Reavers (2007), is set in Elizabethan England.