simulator
//ˈsɪm.jə.leɪ.tər//
Noun
simulatorSingular
simulatorsPlural
1
A machine or device that replicates the conditions or features of a real-world system, used for training, testing, or entertainment.
Pilots use a flight simulator to practice emergency landings.
2
A computer program or software that imitates the behavior of another system, device, or process.
The flight simulator lets you practice flying without leaving the ground.
3
A person who simulates or pretends.
The detective suspected that the witness was a simulator who was hiding the truth.