1 a part of a coat, etc. that you can pull up to cover the back and top of your head:
a jacket with a detachable hood
2 a piece of fabric put over sb's face and head so that they cannot be recognized or so that they cannot see
3 a piece of coloured silk or fur worn over an academic GOWN to show the kind of degree held by the person wearing it
4 (especially BrE) a folding cover over a car, etc:
We drove all the way with the hood down.
5 (AmE) = BONNET(2)
6 a cover placed over a device or machine, for example, to protect it:
a lens hood * an extractor hood (= one that removes cooking smells from a kitchen)
7 (slang, especially AmE) = HOODLUM(1)
