the word when you say same thing twice?

There isn't one specific word for saying the same thing twice. However, there are several terms you can use depending on the context and intended meaning:

* Repetition: This is the most general term and simply means saying something again.

* Redundancy: This implies that the repetition is unnecessary and could be omitted.

* Iteration: This refers to repeating something multiple times, often with slight variations.

* Echoing: This suggests that you are repeating something that was previously said, often for emphasis.

* Reiteration: This means repeating something for clarification or emphasis.

* Duplication: This refers to making an exact copy of something.

* Tautology: This is a specific type of repetition where the same meaning is expressed twice using different words.

The best word to use will depend on the specific context and what you want to convey.