noun air sign one of a group of three signs of the zodiac, Gemini, Libra, and Aquarius 3
noun air sign any of the three astrological signs, Gemini, Libra, or Aquarius, that are grouped together because of the shared attributes of intellect and gregariousness. 1
noun air sign (astrology) Any of the three star signs Aquarius, Gemini or Libra. 0
