cord, string, or thin rope
electrical/power cable (e.g., charger cord)
J'ai besoin d'un nouveau cordon pour charger mon téléphone.
I need a new cord to charge my phone.
a cordon or line forming a barrier — e.g. a police/security line or quarantine line
La police a formé un cordon de sécurité autour de la zone.
The police formed a security cordon around the area.