Difference between Jetsam and Flotsam

What is the difference between Jetsam and Flotsam?

Jetsam as a noun is articles thrown overboard from a ship or boat in order to lighten the load of a ship in distress while Flotsam as a noun is debris floating in a river or sea, in particular fragments from a shipwreck.

We hope you now know whether to use Jetsam or Flotsam in your sentence.