- Profanity: Words that are considered offensive or obscene, such as swear words and curses.
- Slurs: Words that are used to denigrate or insult a particular group of people, such as racial slurs, ethnic slurs, homophobic slurs, and ableist slurs.
- Sexual terms: Words that are related to sex or sexual activity, such as explicit language, genitalia names, and sexual acts.
- Religious terms: Words that are considered offensive or blasphemous in certain religious or spiritual contexts, such as religious oaths and curses.
- Bodily functions: Words that are related to bodily functions, such as excretion, flatulence, and menstruation.
- Mental illness: Words that are used to describe or discuss mental illness in a derogatory way, such as "crazy", "insane", "lunatic", and "retard".
- Death: Words that are related to death, dying, or the afterlife, such as "dead", "corpse", and "grave".
- Other terms: Some words may be taboo in certain cultures or contexts, even if they are not considered offensive or obscene in general. For example, the word "pineapple" is taboo in some cultures, as it is associated with a sexual image.