astrology

noun

as·​trol·​o·​gy ə-ˈsträ-lə-jē How to pronounce astrology (audio)
Synonyms of astrologynext
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
astrological adjective
astrologically adverb

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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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Layer that with the fact that 2026 is the Year of the Fire Horse in Chinese astrology, and suddenly the collective energy becomes unmistakable. Dossé-Via Trenou, Refinery29, 23 Dec. 2025 Spirituality and spells WitchTok, spirituality and astrology has boomed this year. Lucy Maguire, Vogue, 18 Dec. 2025 Philosophical concepts or the study of astronomy, astrology, psychology or music will have appeal. Georgia Nicols, Denver Post, 17 Dec. 2025 In astrology, the winter solstice marks the first day of the Capricorn season. Janet Loehrke, USA Today, 17 Dec. 2025 See All Example Sentences for astrology

Word History

Etymology

Middle English astrologie "study of celestial bodies, prediction by observing the configuration of celestial bodies," borrowed from Middle French & Latin; Middle French astrologie, borrowed from Latin astrologia "study of celestial bodies," borrowed from Greek astrología, from astro- astro- + -logia -logy

First Known Use

14th century, in the meaning defined at sense 2

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

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Cite this Entry

“Astrology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrology. Accessed 31 Dec. 2025.

Kids Definition

astrology

noun
as·​trol·​o·​gy ə-ˈsträl-ə-jē How to pronounce astrology (audio)
: the study of the supposed influences of the stars on human affairs by their positions in relation to each other
astrologer
-jər
noun
astrological adjective
astrologically adverb
Last Updated: - Updated example sentences
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