dagger / ˈdæɡə/ n.［c］短剑，匕首：a well-sharpened dagger锋利的匕首；look daggers at sb. 对某人怒目而视 speak daggers to sb.对某人恶语中伤The news was a dagger to his heart. 这消息像利剑一样刺痛了他的心。