同一个

同一个 means 'the same one' or 'the same thing.' It emphasizes identity or sameness between two or more things, often used to clarify that something is not different or unique.

The character 同 (tóng) means 'same' or 'together,' 一 (yī) means 'one,' and 个 (gè) is a measure word for objects or people. Together, they form a phrase that refers to the singular, identical entity among others.

同一个 is commonly used in daily conversation to highlight similarity or identity, such as when comparing two items or people. It can also be used in formal contexts, like legal or academic writing, to stress that something is not different from another.