- pronunciation:
- paI
- features:
- Homophone Note
| part of speech: |
noun |
| definition: |
a number equal to the ratio of the circumference of a circle to its diameter. The value of pi is approximately 3.1416 or 22/7.
You need to use pi in a formula to find out the area of a circle. |
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The words
pi and
pie (a dessert) sound alike but have different meanings.