Trained worker and Wireman

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

Wireman and trained worker are semantically related. In some cases you can replace term "Wireman" with "Trained worker", this terms are similar.

Wireman noun - A worker who installs and repairs electric wiring.

Trained worker and wireman are semantically related. Sometimes you can use "Trained worker" instead a noun "Wireman".