Telepathy
You create a telepathic link between yourself and a willing creature with which you are familiar. The creature can be anywhere on the same plan of existence as you. The spell ends if you or the target are no longer on the same plane.
Until the spell ends, you and the target can instantly share words, images, sounds, and other sensory messages with each other through the link, and the target recognizes you as the creature it is communicating with. The spell enables a creature to understand the meaning of your words and any sensory messages you send it.
Telepathy 5.5e 2024 vs. 5e 2014 edition differences
The 2024 version changes the school to divination, removes "with an Intelligence score of at least 1," and states "a creature" instead of "a creature with an Intelligence score of at least 1." It also clarifies that you can "instantly share" messages, removing "can" from the original.