boo
UK: buː | US: buː
Definition
n. a sound made to show disapproval or surprise
vt. to shout "boo" to express disapproval
interj. an exclamation used to scare someone or show contempt
Structure
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Etymology
"Boo" is an onomatopoeic word imitating a sudden, startling sound, often used to frighten or mock. Its earliest recorded use dates to the early 19th century as an interjection to surprise or disapprove. The word’s simplicity and phonetic clarity make it universally recognizable across cultures for expressing abrupt emotions.
Examples
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