supremacy
su.prem.a.cy \su.-'prem-*-se-\ n [supreme + -acy (as in primacy)] : the quality or state of being supreme; also : supreme authority or poweruence. SUPREMACY implies superiority over all others; ASCENDANCY may imply supremacy but involves necessarily only the idea of domination over one other SYN syn SUPREMACY, ASCENDANCY mean first in rank, power, or infl