IPA: /rɪˈvɜːrsər/
KK: /rɪˈvɜrsər/
An object or device that causes something to go in the opposite direction or to change back to a previous state.
The reverser on the train allowed it to switch directions without needing to turn around.
Reverser → It is formed from "re-" (meaning again or back) and "vertere" (meaning to turn). The word "reverser" refers to something that turns back or reverses a process.
Think of something that turns back ('re-') — that's why a reverser is something that turns something back.