Meaning of SIMULATION in English

SIMULATION

[noun]The manager prepared a computer simulation (= a model of a problem or course of events, esp. in business or science) of likely sales performance for the rest of the year. [C]It was difficult to tell which of the jewels were real, and which were simulations (= artificial). [C]I was quite deceived by her simulation of sorrow. [U]

Cambridge English vocab.      Кембриджский английский словарь.