You searched for: “tabu”
taboo, tabu (tuh BOO, ta BOO) (s) (noun); taboos, tabus (pl)
1. Something or a practice that is considered inappropriate or forbidden among particular cultures, religions, etc.: Eating pork is strictly taboo among certain religious groups.
2. A religious prohibition: The Polynesians have a taboo about mentioning certain sacred rites.
This entry is located in the following unit: English Words in Action, Group T (page 1)