noun
giant star
Astronomical term for a star of large radius and luminosity, contrasted with 矮星 (dwarf star).
See also: 矮星 (わいせい)
ベテルギウスは赤色巨星の一つだ。
Betelgeuse is one of the red giant stars.
noun
Figurative use for a person of outstanding achievement or influence in a field, like a 'towering figure'.
彼は日本文学の巨星と呼ばれている。
He is called a giant of Japanese literature.
その映画監督はハリウッドの巨星だ。
That film director is a Hollywood superstar.