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

Keep scrolling for more

Other Words from astrology

astrological \ ˌa-​strə-​ˈlä-​ji-​kəl How to pronounce astrology (audio) \ adjective
astrologically \ ˌa-​strə-​ˈlä-​ji-​k(ə-​)lē How to pronounce astrology (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 Wellness offerings such as tarot reading, astrology reading, and wellness coaching may take place virtually on-site, or outdoors with social distancing and masks. Washington Post, "Why some seasonal hotels across the U.S. are staying open year-round," 14 Jan. 2021 Pay attention to opportunities that arise around family, caretaking, real estate, or selfless roles like counseling, herbalism, or astrology around mid-March, as Mars gets a cosmic power up to execute your financial desires around this time. Janelle Belgrave,, "Your Money Horoscope For 2021 Is Here," 12 Jan. 2021 Here are ten of the best astrology apps your phone needs right now. Jasmine Gomez, Seventeen, "10 Of The Best Horoscope Apps For People That Are Obsessed With The Stars," 5 Jan. 2021 In fact, Miller writes every single day, weekends included, to complete all her columns (including for Vogue Japan) as well as relaunching her astrology app this year. Emily Chan, Vogue, "Fashion’s Favorite Astrologer Susan Miller on Her Predictions for 2021," 20 Dec. 2020 As well as writing one of America’s most widely used physics textbooks before Isaac Newton turned everything upside down with calculus and universal gravitation, Morton wrote about alchemy and astrology. Popular Science, "Before we knew how bird migration worked, scientists had some truly wild theories," 17 Dec. 2020 Its rooms are a mix of music industry chatter, speed pitches with investors, strangers vibing, amateur astrology readings. Arielle Pardes, Wired, "The Future of Social Media Is All Talk," 16 Dec. 2020 One revelation of this volume is that astrology and astronomy were once sister sciences. Steffie Nelson, Los Angeles Times, "A new ‘Library of Esoterica’ brings the occult to your coffee table," 15 Dec. 2020 Customized scents are designed using astrology, numerology and tarot to appeal to the individual spirit. Naveen Kumar, CNN Underscored, "19 gifts for the astrology-obsessed person in your life," 10 Dec. 2020

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.

See More

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

Keep scrolling for more

Learn More about astrology

Time Traveler for astrology

Time Traveler

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

See more words from the same century

Statistics for astrology

Last Updated

21 Jan 2021

Cite this Entry

“Astrology.” Dictionary, Merriam-Webster, Accessed 24 Jan. 2021.

Keep scrolling for more

More Definitions for astrology


How to pronounce astrology (audio)

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

Keep scrolling for more

Comments on astrology

What made you want to look up astrology? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!