Definitions from Wiktionary (four-letter word)

▸ noun:  A reference to any of several of the strongest English swear words that are also four letters long, especially those composing the so-called seven dirty words.
▸ noun:  (by extension) A swear word or any words considered to be taboo in a given scenario (regardless of length of word).
▸ Also see four-letter_word


▸ Words similar to four-letter words
▸ Usage examples for four-letter words

▸ Idioms related to four-letter words
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▸ Words that often appear near four-letter words
▸ Rhymes of four-letter words

▸ Invented words related to four-letter words