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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

construction, structure go
a thing constructed

obstruction, impedimenta, obstructor, obstructer, impediment go
any structure that makes progress difficult

closure, block, stop, blockage, occlusion, stoppage
an obstruction in a pipe or tube

noun.artifact

3 Subcategories

breechblock, breech closer go
a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing
plug, stopper, stopple go
blockage consisting of an object designed to fill a hole tightly
vapor lock, vapour lock go
a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor)