If you die with a bad reputation (lower than 0), you will lose more skill (''amount unknown''). In a 2 year old village, the skill loss is 0.6 from 5 random skills.
When you die fighting '''another player''' (also known as PvP death) you will lose 0.25 points from the main [[fighting]] skill, 0.01 body, and 0.01 body strength. However , getting killed by Son of Nogumps seem seems to yield this effect as well.
Suicide counts as a PvE death, but you do not get the penalty reduction for being at home.