Synonyms for Simulation (same or very similar meaning)
WordNet sense 1 ((computer science) the technique of representing the real world by a computer program):
computer simulation
WordNet sense 2 (representation of something (sometimes on a smaller scale)):
model
WordNet sense 3 (the act of giving a false appearance):
feigning, pretense, pretence, pretending
From the ODE community, based on WordNet
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