- Noun - 1. a prejudice (especially in Polynesia and other South Pacific islands) that prohibits the use or mention of something because of its sacred nature - 2. an inhibition or ban resulting from social custom or emotional aversion 
- Verb - 1. declare as sacred and forbidden 
- Adjective - 1. excluded from use or mention; "forbidden fruit""in our house dancing and playing cards were out""a taboo subject"- 2. forbidden to profane use especially in South Pacific islands