Offensive, inappropriate, obscene, or "bad" language; swearing or cursing.

Profanity is offensive language, and may also be known as:

bad language, strong language, coarse language, foul language, bad words, vulgar language, lewd language, swearing, cursing, cussing, or using expletives
via Wikipedia

Interpretations of what words are profanity varies widely within languages, cultures, and even families.

Questions may relate to limiting children's exposure to profanity (used by parents, friends, extended family, or strangers), or how to deal with children who have started using profanity. Ideally, this tag should be used on questions where the profanity is the primary focus, rather than part of a longer list of problematic behaviors.