Shellback and Shipmate

Shipmate and shellback are semantically related in sailor topic. In some cases you can use "Shipmate" instead a noun "Shellback", when it comes to topics like person who travels by sea.

Shipmate noun - An associate on the same ship with you.

Shellback and shipmate are semantically related in sailor topic. You can use "Shellback" instead a noun "Shipmate", if it concerns topics such as person who travels by sea.