uptime vs mill

uptime and mill both are nouns.

Word	Noun	Adjective	Verb	Adverb
uptime	Yes	No	No	No
mill	Yes	No	Yes	No

uptime (noun)	mill (noun)
a period of time when something (as a machine or factory) is functioning and available for use	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

uptime (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