What is the vocabulary term in English for saying a sentence different way but it means same thing as original sentence?

There isn't one single vocabulary term that perfectly captures the idea of saying the same thing in a different way. However, here are some options that come close, depending on the nuance you want to convey:

For general rephrasing:

* Paraphrase: This is the most common and general term. It simply means to express something in different words.

* Restatement: Similar to paraphrase, but might imply a more formal or precise rewording.

* Rewording: This emphasizes the change in the way something is said, rather than the meaning itself.

* Reformulation: This suggests a restructuring of the original sentence, potentially changing the grammar or syntax.

For specific types of rephrasing:

* Synonym: If the rephrased sentence uses different words with the same meaning, it's considered a synonym.

* Circumlocution: This refers to using more words to express the same thing, often in a roundabout or indirect way.

* Euphemism: This is a more polite or less offensive way of saying something that might be considered harsh or unpleasant.

* Translation: If the rephrasing involves changing the language, it's considered a translation.

Ultimately, the best term to use depends on the specific context and the type of rephrasing you're referring to.