engine has definitions from the fields of physics,transportation
[ noun ] (physics) motor that converts thermal energy to mechanical work

Used in print

(Arthur Miller, "The Prophecy," in The Best...)

Finding the key under his shoe , he started the engine , and while it warmed_up he turned to her standing there in the dripping fog , and said , `` Defrost the refrigerator '' .

[ noun ] something used to achieve a purpose


: "an engine of change"

Used in print

(Joyce O. Hertzler, American Social Institutions;...)

Historically , religion has also functioned as a tremendous engine of vindication , enforcement , sanction , and perpetuation of various other institutions .

Related terms


[ noun ] (transportation) wheeled vehicle consisting of a self-propelled engine used to draw trains along railway tracks

Used in print

(Louis Zara, Dark Rider....)

He was torn between the excitement in the sun inflamed waters and a little engine chugging northward on the Monticello_Branch .