as·​trol·​o·​gy | \ ə-ˈsträ-lə-jē How to pronounce astrology (audio) \

Definition of astrology

1 : the divination of the supposed influences of the stars and planets on human affairs and terrestrial events by their positions and aspects
2 archaic : astronomy

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Other Words from astrology

astrological \ ˌas-​trə-​ˈlä-​ji-​kəl How to pronounce astrological (audio) \ adjective
astrologically \ -​k(ə-​)lē How to pronounce astrologically (audio) \ adverb

The Difference Between Astronomy and Astrology

Some may find it easy to confuse astronomy and astrology. At one time, these two words actually were synonymous (that is, astronomy once meant what astrology means today), but they have since moved apart from each other. In current use, astronomy is concerned with “the study of objects and matter outside the earth's atmosphere,” while astrology is the purported divination of how stars and planets influence our lives. Put bluntly, astronomy is a science, and astrology is not.

Examples of astrology in a Sentence

Recent Examples on the Web

Psychic protection is extremely important for EVERYONE—especially those who practice magic, astrology, tarot, and mediumship. Lisa Stardust, Teen Vogue, "How to Use Magic to Banish Energy Vampires," 28 May 2019 Learn more about Debbie Frank on her website here, and pick up her latest book on astrology, Written in the Stars: Discover the Language of the Stars and Help Your Life Shine, on Amazon. Maggie Maloney, Town & Country, "Princess Diana's Astrologer Weighs in on Archie Mountbatten-Windsor's Birth Chart," 13 May 2019 Anyone who is a fan of astrology knows that some people are more romantically compatible with others based on their signs. Carolyn Twersky, Seventeen, "Does Justin Bieber’s Birth Chart Prove He and Selena Gomez Were Doomed From the Start?," 10 Apr. 2019 My interest in astrology began in my dentist’s waiting room in 2008. Hannah Dylan Pasternak, SELF, "What I Learned From Having an On-Call Astrologer for a Week," 1 Apr. 2019 The study of astrology is expansive, complex, and transformative. Aliza Kelly Faragher, Allure, "Each Zodiac Sign's Unique Personality Traits, Explained by an Astrologer," 28 Oct. 2018 Take a look at the science, history, and lure of astrology in this week’s episode of Explained, now on Netflix. Jennie Neufeld, Vox, "Vox Sentences: 1,427 dead. Not 64.," 10 Aug. 2018 After miles of scrolling down astrology meme pages on Instagram, we were inspired to put our own Curbed twist on Halloween costumes, based on your zodiac sign. Diana Budds, Curbed, "Based on your zodiac sign, what should your Halloween costume be?," 10 Oct. 2018 That name comes from astrology, as do the other nicknames for the various full moons of the year. Jill Kiedaisch, Popular Mechanics, "How a Total Lunar Eclipse Works," 18 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astrology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of astrology

14th century, in the meaning defined at sense 2

History and Etymology for astrology

Middle English astrologie, from Middle French, from Latin astrologia, from Greek, from astr- + -logia -logy

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Statistics for astrology

Last Updated

4 Jun 2019

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Time Traveler for astrology

The first known use of astrology was in the 14th century

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English Language Learners Definition of astrology

: the study of how the positions of the stars and movements of the planets have a supposed influence on events and on the lives and behavior of people


as·​trol·​o·​gy | \ ə-ˈsträ-lə-jē How to pronounce astrology (audio) \

Kids Definition of astrology

: the study of the supposed influences of the stars and planets on people's lives and behavior

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