Hang up and Retard

Hang up verb - Cause to be hanging or suspended.

Retard and hang up are semantically related in bother topic. In some cases you can use "Retard" instead a verb "Hang up", when it comes to topics like hold, stick, obstruct, impede.

Retard verb - To cause to move or proceed at a less rapid pace.

Hang up and retard are semantically related in help topic. You can use "Hang up" instead a verb "Retard", if it concerns topics such as hinder.