What Does "That's That" Mean?
"That's that" is an English idiom. It is an expression used to convey finality or the conclusion of a matter, often indicating that further discussion or action is unnecessary.Examples in Sentences
Here are three examples of the idiom "that's that" used in a sentence:- The decision has been made, and that's that; there's no room for negotiation.
- She resigned from her position, and that's that; there's no going back now.
- They sold the house, and that's that; they'll be moving to a new city soon.

What Is an Idiom?
An idiom is a commonly used expression whose meaning does not relate to the literal meaning of its words. In other words, if you were to translate "That's That" word for word, there is no guarantee the translation would help you to understand the meaning.An idiom often includes a cultural or historical context that makes it difficult for non-native English speakers to understand. A phrase is classified as an idiom when a direct translation of the words does not reveal the meaning. Most idioms rely on shared knowledge or experiences known only to a specific community.
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