You asked:

what does the word hood mean

'Hood' has several different meanings: as a verb, 1. cover with a hood; and as a noun, 1. an aggressive and violent young criminal; 2. a protective covering that is part of a plant; 3. (slang) a neighborhood; 4. a tubular attachment used to keep stray light out of the lens of a camera; 5. (falconry) a leather covering for a hawk's head.