mil vs metric capacity unit

mil and metric capacity unit both are nouns.

Word	Noun	Adjective	Verb	Adverb
mil	Yes	No	No	No
metric capacity unit	Yes	No	No	No

As nouns, metric capacity unit is a hypernym of mil; that is, metric capacity unit is a word with a broader meaning than mil:

mil (noun)	metric capacity unit (noun)
a unit of length equal to one thousandth of an inch; used to specify thickness (e.g., of sheets or wire)	a capacity unit defined in metric terms
a metric unit of volume equal to one thousandth of a liter
an angular unit used in artillery; equal to 1/6400 of a complete revolution
a Cypriot monetary unit equal to one thousandth of a pound
a Swedish unit of length equivalent to 10 km