(nautical) A compartment on a ship in which the engine machinery is located. / (idiomatic) The source of power in a team or other group. / (sports) The midfield.

(computing) A mechanical general-purpose computer, designed by Charles Babbage but never built.

(computing, historical) A mechanical special-purpose computer used to generate tables of values of polynomials.

(thermodynamics) Any device which converts heat energy into mechanical work, by moving heat from a source to a sink.

A piston or a rotary heat engine directly powered by the products of intermittent combustion of a fuel.

(Britain, derogatory, modern) A bigoted, xenophobic, and nationalistic English person. / (Britain, derogatory, modern) Someone unaware of the world outside England.

(music) a woodwind instrument similar to an oboe, but larger and pitched a fifth lower

Any of several saddles which, unlike a Western saddle, do not have a horn, but have padded panels so do not need a separate saddle blanket.

plural of engagement

A piston engine.