Noun
Usually written in kana
1. idiot; moron; fool
2. trivial matter; folly; absurdity
Adjective (な)
Usually written in kana
3. stupid; foolish; dull; absurd; ridiculous
Adjective (な)
Noun
Usually written in kana
4. fervent enthusiast; nut; person singularly obsessed with something
usu. in compounds
Noun
Abbreviation
Usually written in kana
5. Mactra chinensis (species of trough shell)