ponytail – n. way of arranging hair by gathering it together at the back of the head and letting it hang down freely
hairstyle – n. a way in which someone's hair is cut or organized
strand – n. a thin piece of hair
bun – n. way of wearing long hair by twisting it into a round shape at the sides or back of the head
helmet – n. a hard hat worn to protect your head
update – v. add new information
antiquated – adj. very old, not modern