su·pe·ri·or·i·ty

/sʊˌpiriˈorəti/ noun [noncount]

1 : the quality or state of being high or higher in quality

— often + of or over

The superiority of our product is obvious.

one product's superiority over another

2 : the belief that you are better than other people

His success has given him a false sense of superiority.

an irritating air of superiority [=an arrogant way of behaving]

3 : the quality or state of being larger, stronger, etc., than others

the country's technological/economic superiority

To win this war, we must achieve air superiority. [=we must have a larger/better air force than our enemies]