Jisho

×
1. boohoo; boo hoo; waa waaSee also うわーん
2. wow; huh
Noun
3. mythical monster that suddenly shouts "uwan", surprising passersby in the night
Wikipedia definition
4. UwanAn uwan in Japanese folklore is a disembodied voice that inhabits old, abandoned temples and homes. According to ancient legends from Aomori Prefecture Japan, when a person enters a one of these buildings, the formless yōkai shouts out an ear-piercing “Uwan!” The voice is only audible to people inside the building — those outside hear nothing. Since an uwan does not physically exist and only consists of sound, it poses no physical danger.
Read “Uwan” on English Wikipedia
Read “うわん” on Japanese Wikipedia
Read “Uwan” on DBpedia

Discussions

to talk about this word.