Tuner, tuning

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Words borrowed from other languages. Always the same result: they may end up to have not much to do with the original meaning in the language, and that's what's happening with tuning and tuner.

Firstly, you may be surprised but tuner isn't the same thing as tuning sometimes, but sometimes is. But let's first explain what's tuning.
Tuning is when you enhance the car yourself to make a lot of noise, to make it look like a sports' car while you own a break, all that things to "enhance" supposedly the cars with gadgets anyone can see and hear, because if people doesn't see the change, it doesn't matters. Tuner, however, is more used for radios, because you have to "tune" to find the right frequency to hear.