Explain in English
When you displace something, you move it to a new position — either in a concrete sense, like moving a chair, or in an abstract sense, like firing someone from a job.
Displace means to forcefully move or remove something — or someone — but it can also mean “to take the place of,” again, with some force. If your brother is sitting in your seat, you might say, “Get out of my chair! Don’t make me have to displace you!” Similarly, when a new employee is hired at work, she might displace the person who had the job before.