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wacko
[ wak-oh ]
/ ˈwæk oʊ /
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This shows grade level based on the word's complexity.
noun, plural wack·os.
Also wack. an eccentric, strange, or odd person.
adjective
QUIZ
THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?
Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.
Question 1 of 7
In the UK, COTTON CANDY is more commonly known as…
Also whack·o [hwak-oh, wak-oh] /ˈʰwæk oʊ, ˈwæk oʊ/ .
Words nearby wacko
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use wacko in a sentence
British Dictionary definitions for wacko
wacko
/ (ˈwækəʊ) informal /
adjective
mad or eccentric
noun plural wackos
a mad or eccentric person
Word Origin for wacko
C20: back formation from wacky
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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