Fill in the blanks.
Zero has ………… reciprocal.

Answer

To solve the question "Zero has ………… reciprocal," we need to understand the concept of reciprocals.

### Step-by-step Solution:

1. **Understanding Reciprocals**:
- The reciprocal of a number \( x \) is defined as \( \frac{1}{x} \). For example, the reciprocal of 2 is \( \frac{1}{2} \), and the reciprocal of \( \frac{1}{3} \) is 3.

2. **Finding the Reciprocal of Zero**:
- To find the reciprocal of 0, we would write it as \( \frac{1}{0} \).

3. **Analyzing \( \frac{1}{0} \)**:
- The expression \( \frac{1}{0} \) is undefined in mathematics. This means that there is no number that can be multiplied by 0 to give 1, which is the requirement for a reciprocal.

4. **Conclusion**:
- Since the reciprocal of 0 cannot be defined, we conclude that "Zero has no reciprocal."

### Final Answer:
Zero has **no** reciprocal.