mounter vs trained worker

mounter and trained worker both are nouns.

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

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

Other hypernyms of mounter include skilled worker, skilled workman.

mounter (noun)	trained worker (noun)
someone who ascends on foot	a worker who has acquired special skills
a skilled worker who mounts pictures or jewels etc.