From Longman Dictionary of Contemporary Englishchignonchi‧gnon /ˈʃiːnjɒn $ -jɑːn/ noun [countable] DCChair that is tied in a smooth knot at the back of a woman’s head SYN bun
Examples from the Corpus
chignon• She had dark hair dressed in a chignon, contained in a net of black chenille beneath her pork-pie hat.• Her hair was screwed into a ballerina chignon and her wooden lips set in a smile of excessive sweetness.• Hair swept into a chic chignon from just behind the fringe is let loose and combed close to the head.• Long hair swept up into a high chignon for classic glamour displays a rebellious streak!• Her blonde hair was pulled back into a smooth chignon and tied with a yellow silk bow.• Long hair will be dressed perfectly in soft chignons, french rolls and gentle loops.• A strand of her dark hair has escaped from the chignon she wears.Origin chignon (1700-1800) French Old French chaignon “chain, collar” 