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# sphere

noun (a sphere, spheres)

«sphere» in the English dictionary: everyday and in Jewish tradition — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A round solid shape like a ball, where every point on the surface is the same distance from the centre. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#m1)
2. An area of activity, interest or power: the sphere of science. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#m2)
3. (science) A layer around the Earth: atmosphere, hemisphere. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#m3)
4. In old writings, the spheres are the heavens, the great rings in the sky that carry the stars and planets. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#m4)

### In the lessons

In maths, a sphere is a 3-D shape with one curved face, no edges and no vertices; balls, bubbles and planets are nearly spheres. In geography, hemispheres are halves of the Earth. Phrases: sphere of influence, half a sphere (hemisphere).

### Examples

- A football is a sphere. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x1)
- A sphere has one curved face and no edges. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x2)
- The Earth is nearly a sphere. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x3)
- A bubble is a sphere. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x4)
- Half a sphere is called a hemisphere. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x5)
- Music is her sphere of interest. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x6)
- Through the spheres echoed the words: [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/#x7)

### Note

Countable. Adjective: spherical. Spelling: sph-ere. Maths: a sphere is 3-D; its flat 2-D cousin is a circle. Volume = 4/3 × π × r³ (later maths).

## In Jewish tradition

Interpretation: In Sefer Yetzirah the ten Sefirot are called spheres, which are the ten stages of God's creation. The letters are arranged on a sphere like a wheel that can turn for good or for evil. In the primary lessons: In maths, a sphere is a 3-D shape with one curved face, no edges and no vertices; balls, bubbles and planets are nearly spheres. In geography, hemispheres are halves of the Earth. Phrases: sphere of influence, half a sphere (hemisphere).

### Examples

- These are the ten spheres of existence out of nothing. (Sefer Yetzirah, Kalisch 1877) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/S/sphere/#x1)
- If the sphere be rotated forward, good is implied, if in a retrograde manner evil is intended. (Sefer Yetzirah, Westcott 1887) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/S/sphere/#x2)
- These twenty-two letters, the foundations, He arranged as on a sphere, with two hundred and thirty-one modes of entrance. (Sefer Yetzirah, Westcott 1887) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/S/sphere/#x3)

### Note

Countable. Adjective: spherical. Spelling: sph-ere. Maths: a sphere is 3-D; its flat 2-D cousin is a circle. Volume = 4/3 × π × r³ (later maths).

## On Mova

- [Trees and pragmatics of «sphere» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/sphere/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«sphere» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/sphere.html) on Mova free.
- [Trees and pragmatics of «sphere» in the Judaism dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/S/sphere/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«sphere» in the Judaism dictionary](https://mova.elamur.ai/free/en/dictionaries/judaism/w/sphere.html) on Mova free.