sphere

sphere is on the Academic Word List.

Pronunciation

• (UK) IPA ^(key): /sfɪə/, SAMPA: /sfI@/
• (US) enPR: sfîr, IPA ^(key): /sfɪr/, SAMPA: /sfIr/

• Audio (US)

  (file)

Noun

Singular sphere

Plural spheres

1. (countable) A sphere is a shape that is round in all directions, like a ball. Every point on a sphere is the same distance from the centre (a point in the middle) of the sphere.
   • Synonyms: ball, orb and globe

   The Earth is almost exactly a sphere.

   A drop of water can be a sphere while it's falling.