Leo
noun
the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus.
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Leo
1 American
[lee-oh]
/ ˈli oʊ /
noun
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Leos,
plural
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Leonis
genitive
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Astronomy. the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus.
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Astrology.
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the fifth sign of the zodiac: the fixed fire sign.
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a person born under this sign, usually between July 23rd and August 22nd.
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a male given name: from a Greek word meaning “lion.”
LEO
2
American
Also
L.E.O
LEO
1
British
abbreviation
Leo
2
British
/ ˈliːəʊ /
noun
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astronomy a zodiacal constellation in the N hemisphere, lying between Cancer and Virgo on the ecliptic, that contains the star Regulus and the radiant of the Leonid meteor shower
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astrology
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Also called: the Lion. the fifth sign of the zodiac, symbol ♌, having a fixed fire classification and ruled by the sun. The sun is in this sign between about July 23 and Aug 22
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a person born during a period when the sun is in this sign
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adjective
Leo
3
British
/ ˈliːəʊ /
noun
Leo
Scientific
/ lē′ō /
Usage
What does Leo mean? Leo is the name of a constellation that is interpreted as representing a lion. It’s sometimes referred to as The Lion. A constellation is a group of stars that appear near each other in the sky—especially a group that has been given a name. Leo is considered one of the 12 zodiacal constellations—constellations that appear within a particular portion of the sky called the zodiac. In astronomy, the zodiac is the band of sky along which the paths of the sun, the moon, and the planets appear to move. Despite its basis in astronomy, the word zodiac is mainly associated with and most often used in the context of astrology, the nonscientific practice in which the positions of heavenly bodies at certain times are thought to influence or be correlated with human behavior and events. In astrology, zodiac refers to a diagram (often a circular one) representing the zodiac belt and showing the symbols associated with each of the 12 constellations or sections, which are called the signs of the zodiac. Leo is one of these signs. It is situated between Cancer and Virgo and is considered the fifth sign of the zodiac. The other signs of the zodiac are Aries, Taurus, Gemini, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. The position of the sun in a particular portion of the zodiac at the moment of a person’s birth is thought to correlate with their personality. This is what people are referring to when they talk about their zodiac sign (or star sign or often just sign). People whose sign is Leo are those born between July 23 and August 22. The word Leo can be used as a noun to refer to someone who is born during this time, as in I was born in early August, so I’m a Leo. The word Leonian can be used to mean the same thing. It can also be used as an adjective form of Leo. Leo is also a given name, traditionally a male one. Example: Oh, your birthday is in August? Are you a Leo?
Other Word Forms
Noun Inflected Forms
Etymology
Origin of Leo
from Latin: lion
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.
See Examples For:
Some have rejected the idea of machine consciousness outright, including Pope Leo XIV and Microsoft AI chief Mustafa Suleyman.
From Barron's ● Oct. 8, 2026
"As you see on the other end with Leo there, he's still performing at the highest level," Kane said after England's semi-final loss to Argentina in the summer.
From BBC ● Oct. 7, 2026
It was written by prolific British screenwriter Russell T Davies, who had Cumming in mind to play Leo Struthers, a queer bar owner in Manchester.
From Los Angeles Times ● Oct. 2, 2026
The artificial-intelligence debate has made it to the Vatican, with none other than Pope Leo weighing in on the technology.
From MarketWatch ● Oct. 2, 2026
Leo would probably reply, Not great, thanks to you.
From "Clairboyance" by Kristiana Kahakauwila
Meanwhile, the contracts Amazon LEO has won with JetBlue and Delta show a new potential competitor in the low Earth orbit satellite market, he adds.
From The Wall Street Journal ● Sep. 29, 2026
Austrian company TRA LEO GmbH & Co KG, which bought the plot, told AFP it had offered to support the creation of a memorial on the site.
From Barron's ● Aug. 28, 2026
“Due to those actions and Zacharia Branch’s failure to comply with multiple verbal lawful commands, he was placed under arrest for misdemeanor Obstruction of LEO and received a citation for Obstructing Public Sidewalks.”
From Los Angeles Times ● Apr. 20, 2026
He also said Macom is involved “on some level” with all current major LEO constellations and several up-and-comers trying to make their first satellites.
From MarketWatch ● Apr. 3, 2026
SEE BRUECKNER, LEO J. The new curriculum workbooks in arithmetic.
From U.S. Copyright Renewals, 1963 July - December by Library of Congress. Copyright Office
The next month, Jose Leos Cervantes, 45, from Mexico, collapsed and died shortly after walking into Vermont.
From Seattle Times ● Feb. 12, 2024
Once Ancona got into office, Leos became dissatisfied with her, feeling that she didn’t do enough to address a dispute between Leos and a neighbor.
From Los Angeles Times ● Dec. 2, 2023
A video shared on Instagram appears to show Ancona sandwiched between Leos and Leos’ husband, who were both filming.
From Los Angeles Times ● Dec. 2, 2023
The man walked up to Leos, asking why she was filming Ancona and also asking where she was from.
From Los Angeles Times ● Dec. 2, 2023
Such rival Leos flourish, And mutual hatred nourish, With a snapping almost currish, upon Afric's shore.
From Punch, or the London Charivari, Volume 100, May 2, 1891 by Various
Transparent Ted Leonis recently did some shopping in the Store of Hopes and Dreams for his NBA and NHL franchises.
From Washington Times ● Jun. 1, 2023
In Calabasas, there’s a pet cemetery, founded in 1929, and L.A.’s cultural landmark No. 1, the Leonis Adobe, built in 1844 and barely rescued from getting wiped out to build a supermarket.
From Los Angeles Times ● Feb. 2, 2021
For her, a nephew’s birth is less meaningful than the traits of Alpha Leonis 3982.
From Washington Post ● Feb. 3, 2020
John B. Leonis, the city co-founder, remained a political leader in the city for 45 years.
From New York Times ● Jun. 18, 2015
Latitude by Leonis 17 degrees 35 minutes 6 seconds. 26th March.
From Journals of Australian Explorations by Augustus Charles Gregory
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
