Lobsterman and Trained worker

Lobsterman noun - A person whose occupation is catching lobsters.

Trained worker and lobsterman are semantically related. In some cases you can use "Trained worker" instead a noun "Lobsterman".

Trained worker noun - A worker who has acquired special skills.

Lobsterman and trained worker are semantically related. Sometimes you can replace term "Lobsterman" with "Trained worker", this terms are similar.