noun
: any of a group of vulgar or obscene words typically made up of four letters
books which rely for their appeal upon sensation and four-letter words — Louis Bromfield
four-letter words used across the tracks — Lou Richter
noun
: any of a group of vulgar or obscene words typically made up of four letters
books which rely for their appeal upon sensation and four-letter words — Louis Bromfield
four-letter words used across the tracks — Lou Richter
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012