Lineman and Trained worker

Lineman noun - A person who installs or repairs electrical or telephone lines.

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

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

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