How can you define a word using the same word?

This is a classic paradox! It's impossible to define a word using itself in a way that's truly informative. Here's why:

* Circular Reasoning: Defining a word with itself creates a circular loop. For example, "A chair is a chair." This doesn't tell us anything new about what a chair is.

* Lack of Meaning: Using the same word doesn't provide any context or explanation. It simply restates the word itself, offering no additional information.

So, how can we define words without using themselves?

We need to use other words that describe the word's meaning, properties, or function. Here are some examples:

* Chair: "A piece of furniture with a seat and back, designed for one person to sit on."

* Happy: "Feeling or showing pleasure or contentment."

* Run: "To move along on foot at a pace faster than a walk."

By using different words to explain a word's meaning, we can create a clear and informative definition.