Suicide
Suicide command
Kills your own character. It applies damage equal to your current health like the HurtMe command, so it has no effect while you are invincible. Present at launch, removed in a later patch, and since reinstated; it does not function on console because of word moderation.
Using cheats on a server
On a multiplayer server, authenticate first with enablecheats <password>, and prefix admin commands with admincheat instead of cheat.