Confused about reduced and oxidised

[doter]

When a question says x is reduced by y
or x is oxidized to y
what does it mean?
I get confused if it's saying it's going through oxidation or reduction
hope this made sense
thanks for any replies

[3Xamz]

If X is reduced by Y, then X undergoes reduction.

Since Y 'makes' X undergo reduction, Y is the reductant.
Thus, X is the oxidant.

So, X gains electrons and Y loses electrons.

[|ll|lll|]

When X is reduced by Y, Y is the reductant/reducing agent.
In this process, X is reduced but Y itself is oxidised. Reduction and oxidation have to occur at the same time. (Wherelse do the electrons go then?  
Oxidised --> Gain of Oxygen / Loss of electrons / Loss in charge and vice versa for reduced

[doter]

Thanks guys, understand it better now