tabou

listen to the pronunciation of tabou
French - Turkish
[le] tabu, yasak, dokunulmaz
tabu
French - English
{v} taboo

It exists, but seeing as it is taboo and that nobody talks about it, there's no need to have words for it. - Ça existe, mais vu que c'est un tabou et qu'on n'en parle donc pas, on n'a pas besoin de mots pour ça.

Incest is a taboo found in almost all cultures. - L'inceste est un tabou que l'on rencontre dans presque toutes les cultures.

{n} taboo, prohibition, ban
taboo, forbidden to use, forbidden to say, prohibited, banned
{a} tabu
tabooed