Marines and Shipmate

Marines noun - Members of a body of troops trained to serve on land or at sea.

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

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

Marines and shipmate are semantically related. Sometimes you can use "Marines" instead a noun "Shipmate".