metalwork vs formation

metalwork and formation both are nouns.

Word	Noun	Adjective	Verb	Adverb
metalwork	Yes	No	No	No
formation	Yes	No	No	No

As nouns, formation is a hypernym of metalwork; that is, formation is a word with a broader meaning than metalwork:

Other hypernyms of metalwork include shaping.

metalwork (noun)	formation (noun)
the activity of making things out of metal in a skillful manner	the act of fabricating something in a particular shape
the metal parts of something	the act of forming or establishing something
	creation by mental activity
	a particular spatial arrangement
	an arrangement of people or things acting as a unit
	(geology) the geological features of the earth
	natural process that causes something to form