any of the 12 equal areas, 30° wide, into which the zodiac can be divided, named after the 12 zodiacal constellations. In astrology, it is thought that a person's psychological type and attitudes to life can be correlated with the sign in which the sun lay at the moment of his or her birth, with the ascendant sign, and to a lesser extent with the signs in which other planets lay at this time
Also called: sign, star sign, sun sign. See also planet (sense 3), house (sense 9)
sun sign in American English
noun
Astrology
the sign of the zodiac through which the sun moves for approximately 30 days each year as the signs rotate through the heavens along the elliptic
Word origin
[1890–95]This word is first recorded in the period 1890–95. Other words that entered Englishat around the same time include: bootstrap, honky-tonk, masochism, neoclassicism, takedown