a business or institution that dispenses products or services in an impersonal or mechanical manner, as if produced in a factory: a divorce mill; a diploma mill.
to grind, work, treat, or shape in or with a mill.
12.
Coining.
a.
to make a raised edge on (a coin or the like).
b.
to make narrow, radial grooves on the raised edge of (a coin or the like).
13.
to beat or stir, as to a froth: to mill chocolate.
14.
Slang. to beat or strike; fight; overcome.
verb (used without object)
15.
to move around aimlessly, slowly, or confusedly, as a herd of cattle (often followed by about or around).
16.
Slang. to fight or box.
Idiom
17.
through the mill, Informal. undergoing or having undergone severe difficulties, trials, etc., especially with an effect on one's health, personality, or character: He's really been through the mill since his wife's death.
Origin: before 950; Middle English milne, mille (noun), Old English myl(e)n < Late Latin molīna, noun use of feminine of molīnus of a mill, equivalent to Latin mol(a) mill + -īnus-ine1
the act or process of grinding, cutting, pressing, or crushing in a mill
2.
the vertical grooves or fluting on the edge of a coin, etc
3.
(in W North America) a method of halting a stampede of cattle by turning the leaders in a wide arc until the herd turns in upon itself in a tightening spiral
"to keep moving round and round in a mass," 1874 (implied in milling), originally of cattle, from mill (n.1) on resemblance to the action of a mill wheel. Related: Milling.