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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

system go
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity

navigational system
a system that provides information useful in determining the position and course of a ship or aircraft

noun.artifact

2 Subcategories

Global Positioning System, GPS go
a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver
omnirange, omnidirectional range, omnidirectional radio range go
a navigational system consisting of a network of radio beacons that provide aircraft with information about exact position and bearing