cub
1 Americannoun
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the young of certain animals, as the bear, lion, or tiger.
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a young shark.
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a young and inexperienced person, especially a callow youth or young man.
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a young person serving as an apprentice.
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(initial capital letter) any small, light monoplane with a high wing, a single engine, and an enclosed cabin.
verb (used without object)
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to work as a cub reporter.
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(of a female bear, lion, tiger, etc.) to give birth to a cub or cubs.
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to hunt fox cubs.
abbreviation
noun
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the young of certain animals, such as the lion, bear, etc
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a young or inexperienced person
verb
noun
Other Word Forms
Etymology
Origin of cub
First recorded in 1520–30; perhaps from Scandinavian; compare Old Norse kobbi “young seal,” kubbr “stump,” hence, “short, thick-set person”
Explanation
A cub is a baby animal. A mother fox sometimes carries her cub by the scruff of its neck. Use the word cub when you talk about one of a number of meat-eating mammal babies, including bears, foxes, lions, and tigers. While a tiny bear cub looks as adorable and helpless as a stuffed animal, its mother is ferocious and protective of her cubs. In the old days, people also called a young, immature boy a cub — today, a human cub is more likely to be a junior Boy Scout — a Cub Scout.
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 tigers include 190kg Kiara, 20-year-old Aschanti, and two-year-old cub Imana.
From BBC • May 18, 2026
The cub, whose coat is still peppered with reddish fur, is very active and still nursing, he said.
From Barron's • May 15, 2026
A polar bear cub travels the icy Svalbard coast with its mother.
From BBC • Mar. 25, 2026
“Home” is a concept that Chase, a newly orphaned cheetah cub, struggles to make sense of.
From The Wall Street Journal • Mar. 20, 2026
The wolf cub did not at all understand what was going on.
From "Wolf Brother" by Michelle Paver
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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.