ALL meanings of supergiant
su·per·gi·ant
S s - noun supergiant Astronomy. supergiant star. 1
- noun supergiant an extremely large or powerful person, company, thing, etc. 1
- adjective supergiant extremely large; immense. 1
- noun supergiant any of a class of extremely large and luminous stars, such as Betelgeuse, which have expanded to a large diameter and are eventually likely to explode as supernovae 0
- noun supergiant an immense and extremely luminous star, as Betelgeuse or Antares, that has a diameter at least 100 times that of the sun and that is 100 to more than 10,000 times as bright 0