Refers specifically to the hair growing on a person's head. For body hair or animal fur, use 毛 (け).
彼女は長い髪をポニーテールに結んでいる。
She ties her long hair in a ponytail.
It takes time to comb my hair every morning.
She dyed her hair brown.
I've been growing my hair out lately.
I washed my hair before going to bed.
I tie up my hair when I exercise.
Children's hair grows quickly.
hair on the back of one's head
traditional Japanese women's hairstyle
hairdresser; hairdressing
natural hair; one's own hair
classic Japanese women's low pompadour hairstyle
rapid hair growth when relaxed
side hair
long hair style of the Genroku era
hair at the nape of the neck; scruff of the neck
ancient boys' hairstyle with a center part and loops above each ear
red hair
forelock; hair on the forehead
kanji "hair" radical at top