draughtsman vs trained worker

draughtsman and trained worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
draughtsman	Yes	No	No	No
trained worker	Yes	No	No	No

As nouns, trained worker is a hypernym of draughtsman; that is, trained worker is a word with a broader meaning than draughtsman:

Other hypernyms of draughtsman include skilled worker, skilled workman.

draughtsman (noun)	trained worker (noun)
a skilled worker who draws plans of buildings or machines	a worker who has acquired special skills