The quality of being supreme. / Power over all others. / (in combination) The ideology that a specified group is superior to others or should have supreme power over them.

plural of supremacy

In a war, the most favorable state of control of the air: air superiority so complete that the opposing air force is incapable of effective interference.

The ideology which holds that the white race is superior to all others. / A situation in which white people are privileged over other people in society.

the supreme and universal power of the Pope, which he can always exercise unhindered, over the Roman Catholic Church

The potential ability of quantum computers to solve problems that are intractable for classical computers.

Alternative spelling of cissupremacy

An ideology or system that holds that straight sexual orientation is superior and privileges straight people.

Used other than figuratively or idiomatically: see black, supremacy. / The ideology which holds that the black race is superior to all others.

Alternative spelling of heterosupremacy.