Dictionary.com
Thesaurus.com

numerology

American  
[noo-muh-rol-uh-jee, nyoo-] / ˌnu məˈrɒl ə dʒi, ˌnyu- /

noun

  1. the study of numbers, as the figures designating the year of one's birth, to determine their supposed influence on one's life, future, etc.


numerology British  
/ ˌnjuːməˈrɒlədʒɪ, ˌnjuːmərəˈlɒdʒɪkəl /

noun

  1. the study of numbers, such as the figures in a birth date, and of their supposed influence on human affairs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • numerological adjective
  • numerologist noun

Etymology

Origin of numerology

1910–15; < Latin numer ( us ) number + -o- + -logy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The explanation is hard to untangle for those who aren’t true numerology zealots.

From The Wall Street Journal • Mar. 23, 2026

It was as a young woman that she changed her name from Susan to Sussan, inspired by numerology - an ancient belief that numbers have a mystical impact on people's lives.

From BBC • May 12, 2025

"The numerology of this complicated physics puzzle requires quite some patience," says Haoyun Huang, Csathy's PhD student.

From Science Daily • Feb. 21, 2024

That’s how I learned 2024 is an “eight” year in numerology: When you add each digit in 2024 you reach a total of eight, making this an auspicious year to take action.

From Los Angeles Times • Jan. 10, 2024

Numerology Less worrisome than inaccurate tests is numerology, the last pseudoscience I want to discuss, and my favorite.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos