noun · verb · 9 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ˈbuːb/
US:Recorded audio is listed in the source snapshot.
rhymes with -uːb
CMU ARPABET:B UW1 B
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
An idiot; a fool.
Definition source: English Wiktionary via Wiktextract
Usage: Canada, US, dated, derogatory, informal
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A mistake.
Definition source: English Wiktionary via Wiktextract
Usage: UK, informal
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A breast, especially that of an adult or adolescent female human.
Definition source: English Wiktionary via Wiktextract
Usage: colloquial, slang
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
A prison; jail.
Definition source: English Wiktionary via Wiktextract
Usage: Australia, US
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
verb
Meaning 5
To behave stupidly; to act like a boob.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To make a mistake.
Definition source: English Wiktionary via Wiktextract
Usage: informal, intransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
noun
Meaning 7
either of two soft fleshy milk-secreting glandular organs on the chest of a woman
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: breast, bosom, knocker, tit, titty
Antonyms: none provided
Broader terms: mammary gland, mamma
8
noun
Meaning 8
an ignorant or foolish person
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: dumbbell, dummy, dope, booby, pinhead
Antonyms: none provided
Broader terms: simpleton, simple
9
verb
Meaning 9
commit a faux pas or a fault or make a serious mistake
Definition source: Princeton WordNet 3.0
Examples
I blundered during the job interview
Meaning relationships
Synonyms: drop the ball, sin, blunder, goof
Antonyms: none provided
Broader terms: transgress, offend, infract, violate, go against, breach, break
History
Etymology
Clipped form of booby (“fool”). Appeared near the beginning of the twentieth century; more information at booby § Etymology 1.
Clipped form of booby (“breast”). Appeared from the 20th century; more information at booby § Etymology 2.
Apparently shortened from booby-hatch.
Across languages
Translations
86 source translations are retained for this English entry.
Bulgarian:
глупак
(glupak)
— idiot, fool
Finnish:
dorka
— idiot, fool
Finnish:
bimbo
— idiot, fool
Italian:
babbeo
— idiot, fool
Russian:
сиська
(sisʹka)
— idiot, fool
Arabic:
ثَدْي
(ṯady)
— breast (colloquial)
Arabic:
صَدِر
(ṣadir)
— breast (colloquial)
Arabic:
ديس
(dēs)
— breast (colloquial)
Armenian:
ծիծ
(cic)
— breast (colloquial)
Azerbaijani:
məmə
— breast (colloquial)
Azerbaijani:
məməş
— breast (colloquial)
Belarusian:
сі́ська
(sísʹka)
— breast (colloquial)