A simulation is a representation of something, not the real thing, like the simulation of life in New York City, seen in movies that were shot on Hollywood sound stages and on the streets of Toronto.

A simulation is something that represents something else — it isn't the real thing. At times you might perform a simulation as practice for real life, such as a flight simulation that’s used to train pilots. The word can also be used, often dismissively, to describe something that is a fake, like a simulation of excitement or the simulation of a perfect diamond.

Definitions of simulation

n 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)

war game
a simulation of a military operation intended to train military commanders or to demonstrate a situation or to test a proposed strategy
Type of:
model, modeling, modelling
the act of representing something (usually on a smaller scale)

n representation of something (sometimes on a smaller scale)

Trojan Horse
a large hollow wooden figure of a horse (filled with Greek soldiers) left by the Greeks outside Troy during the Trojan War
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a model of a bodily form (especially of a person)
a sphere on which a map (especially of the earth) is represented
full-scale working model of something built for study or testing or display
an apparatus or model for representing the solar systems
a model that represents the landscape of a former geological age or that represents and extinct animal etc.
a rough preliminary model
celestial globe
a globe that is a spherical model of the heavens
a figure representing the human form
figure on the bow of some sailing vessels
figurine, statuette
a small carved or molded figure
planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork; sometimes incorporated in a clock
marionette, puppet
a small figure of a person operated from above with strings by a puppeteer
a figure of a person made of packed snow
Type of:
a creation that is a visual or tangible rendering of someone or something

n (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”
computer simulation
Type of:
a practical method or art applied to some particular task
framework, model, theoretical account
a hypothetical description of a complex entity or process

n the act of giving a false appearance

feigning, pretence, pretending, pretense
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appearance, show
pretending that something is the case in order to make a good impression
make-believe, pretend
the enactment of a pretense
affectation, affectedness, mannerism, pose
a deliberate pretense or exaggerated display
making a false outward show
a theatrical pose created for effect
radical chic
an affectation of radical left-wing views and the fashionable dress and lifestyle that goes with them
Type of:
deceit, deception, dissembling, dissimulation
the act of deceiving

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