Answer: It loses electrons to another element.
Explanation:- Oxidation is the process in which an element loses electrons and there is an increase in the oxidation state. On losing electrons it combines with a electronegative element such as oxygen, sulphur or nitrogen etc.
![Fe\rightarrow Fe^(2+)+2e^-](https://img.qammunity.org/2020/formulas/chemistry/middle-school/tcw8bfy1nouvvk8k4yeiqkhkcuphab495l.png)
Reduction is the process in which an element gains electrons and there is a decrease in the oxidation state.
![(1)/(2)O_2+2e^-\rightarrow O^(2-)](https://img.qammunity.org/2020/formulas/chemistry/middle-school/okwrm6cbsi3c1ggns46jctt28n20jmdmii.png)