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

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 The personality trait most closely associated with a belief in astrology is narcissism. Rafil Kroll-zaidi, Harper’s Magazine , 18 Jan. 2022 In 2019, the Afro-Dominican writer opened the doors of her astrology business, Stari Agency. Yara Simón,, 29 Dec. 2021 Hours before the collapse, Stratton wrote a post about astrology on Instagram. Washington Post, 1 July 2021 The Astra Collection was inspired by Co-Owner Jennifer Gandia’s lifelong love of astrology. Joseph Deacetis, Forbes, 7 Dec. 2021 According to a tweet, SZA was inspired to share them because of her astrology reader. Ilana Kaplan, Rolling Stone, 3 Dec. 2021 Dahl later made a name for herself as a businesswoman in the beauty industry in the '60s and '70s before cashing in on the astrology fad of the '80s with her own psychic hotline. Lester Fabian Brathwaite,, 29 Nov. 2021 Who cares if some people treat vitamins like edible astrology? Amanda Mull, The Atlantic, 22 Nov. 2021 Thanks to the new boss and her introduction to astrology through Tio, Alice also progresses at work. Sheena Scott, Forbes, 30 Oct. 2021

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

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Last Updated

21 Jan 2022

Cite this Entry

“Astrology.” Dictionary, Merriam-Webster, Accessed 28 Jan. 2022.

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More Definitions for astrology



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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