milling machinery vs mill

milling machinery and mill both are nouns.

Word	Noun	Adjective	Verb	Adverb
milling machinery	Yes	No	No	No
mill	Yes	No	Yes	No

As nouns, milling machinery and mill are synonyms defined as:

milling machinery and mill: machinery that processes materials by grinding or crushing

Other synonyms of milling machinery include grinder.

milling machinery (noun)	mill (noun)
machinery that processes materials by grinding or crushing	the act of grinding to a powder or dust
	machinery that processes materials by grinding or crushing
	a plant consisting of one or more buildings with facilities for manufacturing

milling machinery (verb)	mill (verb)
	grind with a mill
	produce a ridge around the edge of
	roll out (metal) with a rolling machine
	move about in a confused manner