(1):
(n.) The working parts of a machine, engine, or instrument; as, the machinery of a watch.
(2):
(n.) Machines, in general, or collectively.
(3):
(n.) The supernatural means by which the action of a poetic or fictitious work is carried on and brought to a catastrophe; in an extended sense, the contrivances by which the crises and conclusion of a fictitious narrative, in prose or verse, are effected.
(4):
(n.) The means and appliances by which anything is kept in action or a desired result is obtained; a complex system of parts adapted to a purpose.