1. the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)

Definition categories: act, model, modeling, modelling

2. (computer science) the technique of representing the real world by a computer program

- a simulation should imitate the internal processes and not merely the results of the thing being simulated

Definition categories: thought, technique, framework, model

3. representation of something (sometimes on a smaller scale)

Similar word(s): model

Definition categories: man–made, representation

4. the act of giving a false appearance

Similar word(s): feigning, pretence, pretending, pretense

Definition categories: act, deceit, deception, dissembling, dissimulation

Sentences with simulation as a noun:

- This exercise is a simulation of actual battle conditions.

- The most reliable simulation predicts that the hurricane will turn north.

- Despite extensive simulation in the design phase, the aircraft failed to behave as expected.