2taboo noun
plural taboos [count] 1 : a rule against doing or saying something in a particular culture or religion
▪ religious/social taboos against drinking alcohol 2 : something that is not acceptable to talk about or do : something that is taboo
▪ Marrying a close relative is a taboo in many cultures.
▪ religious/social taboos against drinking alcohol
▪ Marrying a close relative is a taboo in many cultures.
