simulator
UK: ˈsɪmjʊleɪtə | US: ˈsɪmjəleɪtər
n. a device or system that replicates the operation of real-world processes or environments for training, testing, or analysis.
n. a person or thing that simulates or imitates something.
The word "simulator" traces back to the Latin verb simulare ("to imitate, copy"), derived from similis ("like, similar"). The suffix -ator (from Latin -ator) denotes an agent or tool performing the action. Thus, a "simulator" literally means "a thing that imitates" — originally referring to human actors or mimics, later extended to mechanical/technical systems replicating real conditions.
The flight simulator provides pilots with realistic training scenarios.
Scientists use climate simulators to predict weather patterns.
The VR headset acts as a simulator for immersive gaming experiences.
He worked as a simulator operator for military training programs.
This app is a car-driving simulator for learner drivers.