expression, godan verb (-bu)
purse one's lips; press one's lips together
Describes firmly closing the lips, often conveying determination, suppressed emotion, or tension.
彼は怒りをこらえて唇を引き結んだ。
He pursed his lips, holding back his anger.
彼女は何も言わずに唇を引き結
She pressed her lips together without saying a word.