In anime, teleporting to another world is usually called isekai if the character is transported or reincarnated into a different world. If you mean instant movement within the same world, that’s usually just called teleportation or instant transmission.

Common anime terms

  • Isekai : being sent to another world, often from modern Japan into a fantasy world.
  • Teleportation : moving instantly from one place to another in the same setting.
  • Instant transmission / blink : specific labels some series use for a teleport-like power.

Simple distinction

  • Another world = isekai.
  • Another place in the same world = teleportation.

If you want, I can also give you the Japanese term and a few anime examples.