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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

artifact, artefact go
a man-made object taken as a whole

instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end

device go
an instrumentality invented for a particular purpose

machine go
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

motor go
machine that converts other forms of energy into mechanical energy and so imparts motion

engine go
motor that converts thermal energy to mechanical work

reaction-propulsion engine, reaction engine go
a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream

jet engine go
a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion

rocket, rocket engine go
a jet engine containing its own propellant and driven by reaction propulsion

retrorocket
a small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its course

noun.artifact

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