sim
nounUK /sɪm/
US /sɪm/
A sim is a computer game that pretends to be real life.
My favorite sim lets me build a whole city.
OTHER MEANINGS
2. A short form of simulation, a computer model of something real.
The pilot practiced on a flight sim before flying.
3. A character you control in a life simulation game.
I made a sim with blue hair and a big house.
4. A mobile phone card that connects you to a network.
He put a new SIM in his phone.