Synonyms and related words :
arch, ascendant, at the head, banner, boss, capital, cardinal, central, champion, chief, commanding, controlling, crowning, dominant, first, focal, foremost, general, governing, great, head, headmost, hegemonic, hegemonistic, in ascendancy, in charge, in chief, in the ascendant, leading, magisterial, main, master, on the throne, overbearing, overruling, paramount, predominant, predominate, preeminent, prepollent, preponderate, prepotent, prevailing, prevalent, primal, primary, prime, principal, ranking, regnant, regulating, regulative, regulatory, reigning, ruling, sovereign, star, stellar, supereminent, supreme, swaying, topflight