f vs f-word

f

• fuck 

• Folio, paper and book size (10"-12.5" x 15"-20") 

• The name of the fourth tone of the model scale, or scale of C. F sharp (F♯) is a tone intermediate between F and G. 

• The sixth letter of the English alphabet, called ef and written in the Latin script. 

f-word

• The word fuck (or inflected forms like fucking) or fucker. 

• Any word beginning with f that is not normally taboo but is considered (often humorously) to be so in the given context. 

• The word fag or faggot. 

• To use vulgarities, especially the word fuck.