Astrology Terms: Letter A

Browse 4 astrology terms starting with the letter A.

Reviewed byKenneth O. Patterson·Astrologer & Content Director

Showing 4 of 92 terms

A

Air Signs

Gemini, Libra, and Aquarius. Air signs are characterized by intellect, social awareness, communication skills, and an analytical approach to ideas.

Learn more: Elements →

Aquarius

The eleventh sign of the zodiac (January 20 - February 18), a fixed air sign traditionally ruled by Saturn and modernly by Uranus. Aquarius is associated with innovation, humanitarianism, and independence.

Learn more: Zodiac Signs →

Aries

The first sign of the zodiac (March 21 - April 19), a cardinal fire sign ruled by Mars. Aries is associated with initiative, courage, and assertiveness.

Learn more: Zodiac Signs →

Ascendant

The zodiac sign rising on the eastern horizon at the time of birth, also called the Rising sign. It defines the 1st house cusp and represents your outward persona and first impressions.

Learn more: Houses →

Frequently Asked Questions

What is an astrology glossary?▾
An astrology glossary is a comprehensive reference that defines the specialized terminology used in astrological practice. It covers zodiac signs, planets, houses, aspects, chart types, and advanced concepts like dignity, decan, and sect, helping beginners and experienced practitioners alike communicate clearly about astrological topics.
How many terms does astrology use?▾
Professional astrology uses hundreds of technical terms. This glossary covers over 80 of the most essential terms, including all 12 zodiac signs, 10 planets, 12 houses, 6 major aspects, 7 chart types, and dozens of key concepts like retrograde, stellium, and chart ruler.
What is the difference between a sign, a planet, and a house?▾
In astrology, planets represent fundamental drives (what energy), signs describe how those drives express themselves (how the energy manifests), and houses indicate where in life the energy plays out (which life area). For example, Venus (love) in Scorpio (intensely) in the 7th house (partnerships) describes someone who loves deeply and passionately in close relationships.
Do I need to know all these terms to read a birth chart?▾
No. Start with the basics: the 12 zodiac signs, the 10 planets, and the concept of houses. As you gain experience, you can explore more advanced terms like aspects, dignities, and chart patterns. This glossary is organized alphabetically so you can look up terms as you encounter them.