simulation

A model of a real system or situation used to test or predict what will happen.

• The simulation predicts tomorrow’s weather.
• We ran several simulations of the new engine.
• This computer simulation models traffic across the city.

How to use it: simulation of something (The simulation of traffic predicted long delays.)

Similar words: model

Common phrases: computer simulation, run a simulation, simulation of something

A made-up version of a real event, created to show what it would look like.

• We watched a simulation of the landing.
• The school held a fire simulation.
• This simulation shows how the accident happened.

How to use it: simulation of something (We watched a simulation of a rescue.)

Similar words: recreation, imitation

Common phrases: simulation of something, realistic simulation, emergency simulation

The activity of copying how something works or happens so it can be studied or tested.

• Simulation helps engineers test their designs.
• The team used simulation to study airflow.
• Extensive simulation reduced the need for physical tests.

Similar words: modeling

Common phrases: through simulation, simulation testing, numerical simulation