/rtp - Travel to different worlds.
Wild - The main world to build and live in.
Resources - Mining world where you can collect resources.
Nether - The nether. You can also use portals.
End/Aether - The End. You can also use portals.
/pw - See list of all warps.
/tpa <name> - Teleport to another player.
/tpahere <name> - Request another player teleport to you.
/tptoggle - Disable teleport requests from others.
/sethome - Set the location of your homebase.
/home - Teleport back to your homebase.
/pw <name> - Teleport to someone elses warp.
/pw set <name> - Set a warp (higher ranks).