IPA: //sɪˈmjuːleɪtə//
KK: /sɪˈmjuːleɪtə/
A device or system that imitates or replicates real-life conditions for training, testing, or entertainment purposes.
The flight simulator allows pilots to practice flying without leaving the ground.
Simulator → It is formed from "simulare" (meaning to imitate or feign) and the suffix "-or" (indicating an agent or doer). The word "simulator" refers to one who imitates or creates a representation of something.
Think of someone who 'imitates' ('simulare') something — that's why a simulator is someone or something that creates an imitation.