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  • homo
    homo
    noun
    a contemptuous term used to refer to a gay person, especially a gay man.
  • Homo
    Homo
    noun
    the genus of bipedal primates that includes modern humans and several extinct forms, distinguished by their large brains and a dependence upon tools.
  • homo-
    homo-
    a combining form appearing in loanwords from Greek, where it meant “same” (homology ); on this model, used in the formation of compound words (homomorphic ).
  • homo–
    homo–
    A prefix meaning “same,” as in homogamous, having the same kind of flower.

homo

1 American  
[hoh-moh] / ˈhoʊ moʊ /

noun

Slang: Extremely Disparaging and Offensive.
homos plural
  1. a contemptuous term used to refer to a gay person, especially a gay man.


Homo 2 American  
[hoh-moh] / ˈhoʊ moʊ /

noun

  1. the genus of bipedal primates that includes modern humans and several extinct forms, distinguished by their large brains and a dependence upon tools.

  2. Facetious. (used in made-up taxonomic expressions to denote a type of human being).

    The door opens, and in walks Homo stupidus.


homo- 3 American  
  1. a combining form appearing in loanwords from Greek, where it meant “same” (homology ); on this model, used in the formation of compound words (homomorphic ).


homo 1 British  
/ ˈhəʊməʊ /

noun

  1. informal short for homosexual

"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

homo- 2 British  

combining form

  1. being the same or like Compare hetero-

    homologous

    homosexual

"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

homo 3 British  
/ ˈhəʊməʊ /

noun

  1. informal homogenized milk

"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

Homo 4 British  
/ ˈhəʊməʊ /

noun

  1. a genus of hominids including modern man (see Homo sapiens ) and several extinct species of primitive man, including Homo habilis and Homo erectus

"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

homo– Scientific  
  1. A prefix meaning “same,” as in homogamous, having the same kind of flower.


Homo Cultural  
  1. The genus to which human beings belong. The genus Homo includes Neanderthals and other hominids closely related to today's humans, such as Homo erectus.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of homo1

First recorded in 1920–25; by shortening of homosexual ( def. )

Origin of Homo2

First recorded in 1590–1600; from Latin homō “man, human,” literally “the earthly one,” derivative of humus “earth, ground, soil”; related to Latin hūmānus “pertaining to man, human”; akin to Old English guma, Old Irish duine, Welsh dyn, Old Lithuanian žmuõ “human being”; see humus, human

Origin of homo-3

< Greek, combining form of homós one and the same; akin to Sanskrit sama-; see same

Explanation

The genus that includes modern humans is called Homo. "Homo sapiens" are modern humans. Our ancestors had names like "Homo neanderthalensis" and "Homo erectus." Homo is a Latin word that means man, or human. When it is used as a prefix, as in "homosexual," it comes from the Greek word homos, meaning the same. It is from the word "homosexual" that the noun homo is shortened and takes its second meaning — a derogatory term for a homosexual or gay man. Its use is offensive, and you should use other terms instead. It is spelled with a lowercase h in this use.

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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:

But their construction, and ingenuity, has one wondering about the intelligence and fortitude of these homo sapiens who lived as many as 9,000 years ago.

From The Wall Street Journal Oct. 21, 2025

His brand of toiletry involves writing stories for the absolutely lowest common denominator of homo sapiens.

From Salon Apr. 27, 2024

Q: Have homo sapiens evolved into the so-called “homo technologicus?”

From Seattle Times Sep. 11, 2023

Directed by Mark Mannucci, “Unknown: Cave of Bones,” focuses on a recent expedition into a South African cave that contains skeletal remains of the ancient human relative homo naledi.

From New York Times Jul. 17, 2023

Jonah pressed his pencil down too hard on the sapiens part of homo sapiens, and the lead snapped.

From "Found" by Margaret Peterson Haddix

These conditions gave birth to a new type of person, which the writer Alexander Zinoviev called Homo Sovieticus, or Homosos; the term sovok was also common.

From The Wall Street Journal Jul. 10, 2026

The discovery pushes back the oldest known evidence of rainforest habitation by more than double previous estimates and suggests early Homo sapiens were far more adaptable than once believed.

From Science Daily May 20, 2026

Nominally the case turned on OpenAI’s conversion to a for-profit company and Mr. Musk’s worries about Homo sapiens being displaced by superintelligent robots.

From The Wall Street Journal May 19, 2026

That pattern appears to strengthen significantly with the emergence of the genus Homo.

From Science Daily May 18, 2026

Homo sapiens has kept hidden an even more disturbing secret.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

They replace explicit references to homo- and heterosexuality—which would indicate disparate treatment—with the catch-all terms sexual orientation and gender identity.

From Slate Jan. 27, 2022

It is one in which the conventions of both homo- and heteronormative expression are called into question daily.

From New York Times Sep. 18, 2018

“Your homo- or heterosexuality is neither a virtue nor a flaw. It just isn’t. Who you want to have sex with is not something you cultivate.”

From The Guardian Apr. 29, 2017

Another key structural problem is to understand how GPCRs associate to form homo- or hetero-oligomers.

From Nature Feb. 13, 2013

Its 114 homo- words will show how this huge number is partly supplied.

From Society for Pure English, Tract 02 On English Homophones by Bridges, Robert Seymour

But the epochal battle between homos neanderthalensis and sapiens takes the most English form imaginable: a football match.

From Slate Feb. 14, 2018

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