(Definition of pi noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)

Focus on the pronunciation of pi
You are looking at an entry to do with Mathematical symbols, but you might be interested in these topics from the **Mathematics & arithmetic** topic area:

- Addition, subtraction, multiplication & division
- Averages
- Branches & types of mathematics
- Calculations & calculating
- Fractions
- Geometrical & mathematical instruments
- Geometrical shapes
- Geometry: bends, loops & curves
- Geometry: describing angles, lines & orientations
- Geometry: parts of geometrical shapes
- Geometry: properties of circles & curves
- Numbering & counting
- Numbers generally
- Numbers: cardinal, including nought & zero
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- Numerical relationships
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- Terms for numbers

“pi”: synonyms and related words:

a person or group who receives money, advantages, etc. as a result of something else

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