核心

Free from error; conforming to fact or truth; precise.

A statement of the exact meaning of a word, especially in a dictionary, or the act of making the scope of a concept clear.

Achieving maximum productivity with minimum wasted effort or expense.

The true nature, essence, or substance of something as opposed to its appearance. It can also refer to a physical entity or a real existence.

A statement that represents something as better or worse than it really is. To overstate facts, feelings, or sizes beyond the truth.

The act of showing or offering something for consideration or inspection; presentation.

The tone, trend, or general drift of an argument or editorial. It refers to the overall stance taken by a writer or a newspaper.