(noun)Anywordbeginning with f that isnotnormallytaboobutisconsidered (often humorously) to besoin the givencontext.
(verb) To usevulgarities.
Use "f-word" in a sentence
"All three lawyers who argued and the justices never used the expletives at the heart of the dispute, but instead referred to the "f-word" or the "s-word.""
"And you've got to give it to a woman who will scream the f-word at a news camera in the middle of a school board meeting."
"By contrast, Western parents have to tiptoe around the issue, talking in terms of "health" and never ever mentioning the f-word, and their kids still end up in therapy for eating disorders and negative self-image."