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English definition of “four-letter word”

four-letter word

noun [C]     /ˌfɔːlet.əˈwɜːd/ US  /ˌfɔː.let̬.ɚˈwɝːd/
a short word that is considered to be extremely rude and offensive : Four-letter words are often edited out of films before they are shown on television .Swearing and blasphemy
(Definition of four-letter word noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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