bun [buns](a tight roll of hair worn at the back of the head) noun [UK: bʌn] [US: ˈbən]She wears her hair in a bun. = Tiene i suoi capelli in una crocchia.
chignon [chignons](roll or twist of hair worn at the nape of the neck; a bun) noun [UK: ˈʃiː.njɒn] [US: ˈʃiː.njɒn]