n. 25B6; noun
the eclipse of the sun : BLOTTING OUT, blocking, covering, obscuring, concealing, darkening; Astronomy occultation.
the eclipse of the empire : DECLINE, fall, failure, decay, deterioration, degeneration, weakening, collapse.
25B6; verb
the sun was eclipsed by the moon : BLOT OUT, block, cover, obscure, hide, conceal, obliterate, darken; shade; Astronomy occult.
the system was eclipsed by new methods : OUTSHINE, overshadow, surpass, exceed, outclass, outstrip, outdo, top, trump, transcend, upstage.