The usual term (though colloquial) is "highlighted hair" for lightened hair.
Hair dye is how you spell it.
Blond hair.
Hair is the correct spelling
my aunt has brown hair
it wasn't a spell but rather a large amount of Sleekeazy's Hair Potion
The word is spelled straight in "straight hair".
"Hare", if you mean the rabbit
That is HAIRDO (a hairstyle).
A person who has no hair is typically spelled as "bald."
a the spell box
The word sought may be "alopecia" or generally loss of hair, especially scalp hair.
The plural noun is "barrettes" for the hair clips or decorations.