Synonyms and related words :
arch, banner, capital, cardinal, central, champion, chief, crowning, dominant, first, first-chop, first-class, first-rate, focal, foremost, great, headmost, hegemonic, leading, magisterial, main, master, overruling, paramount, predominant, preeminent, preponderant, prevailing, primal, primary, prime, principal, ranking, ruling, sovereign, star, stellar, supereminent, tip-top, top-drawer, top-hole, top-notch, topping, tops