plural zoos
Synonyms of zoo
1
: a facility with usually indoor and outdoor settings where living, typically wild animals are kept especially for public exhibition

called also zoological garden, zoological park

2
: a place, situation, or group marked by crowding, confusion, or unrestrained behavior
The convention was a zoo.

zoo-

2 of 2

combining form

variants or before a vowel zo-
1
: animal : animal kingdom or kind
zooid
zoology
2
: motile
zoospore

Examples of zoo in a Sentence

Noun The sixth grade classroom was a zoo after recess. The supermarket was a real zoo on the night before the storm.
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.
Noun
In February, images of Punch with his toy posted by the zoo on social media immediately became a sensation and drove tens of thousand of visitors to the zoo, half of them from overseas, Yasunaga said. ABC News, 25 July 2026 Just minutes from Arrowhead Stadium, the zoo makes for an easy half-day or full-day outing before or after a game. Taylor Haught, Kansas City Star, 24 July 2026 With a population of 125,182, the town is known as the Official Storybook Capital of America, according to Tour Texas, and also has a zoo. Mateo Rosiles, USA Today, 24 July 2026 Will a pregnant Marjan, named after the lion statue guarding the entrance of the Kabul zoo, survive after escaping her warlord husband? Monitor Reviewers, Christian Science Monitor, 23 July 2026 See All Example Sentences for zoo

Word History

Etymology

Noun

short for zoological garden

Combining form

borrowed from Greek zōo-, zōio-, combining form from zôion "animal," derivative from the base of zṓō, zṓein (Homeric), zô, zên (Attic) "to be alive, live," going back to Indo-European *gwi̯éh3-(u)- "live" (whence also Tocharian B śāyau "[I] live"), full grade of a stem attested elsewhere with zero grade as *gwih3-u-, whence Latin vīvō, vīvere "to live," Old Church Slavic živǫ, žiti, Old Prussian giwa "(s/he) lives," Latvian dzīvu "(I) live," Sanskrit jīvati "(s/he) lives," Avestan juuaiti

Note: See also bio-, quick entry 1.

First Known Use

Noun

1835, in the meaning defined at sense 1

Time Traveler
The first known use of zoo was in 1835

Browse Nearby Words

Cite this Entry

“Zoo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zoo. Accessed 27 Jul. 2026.

Kids Definition

plural zoos
: a garden or park where living usually wild animals are kept for showing to the public

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