sphere
part of speech
noun (a sphere, spheres)
meaning for a pupil
1) A round solid shape like a ball, where every point on the surface is the same distance from the centre. tree →
2) An area of activity, interest or power: the sphere of science. tree →
3) (science) A layer around the Earth: atmosphere, hemisphere. tree →
4) In old writings, the spheres are the heavens, the great rings in the sky that carry the stars and planets. tree →
sense 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 →
- A sphere has one curved face and no edges. tree →
- The Earth is nearly a sphere. tree →
- A bubble is a sphere. tree →
- Half a sphere is called a hemisphere. tree →
- Music is her sphere of interest. tree →
- Through the spheres echoed the words: tree →
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).
Trees and pragmatics
Every meaning and example of «sphere» parsed by Mova, each sentence with its dependency tree and frames.