n. 25B6; noun
the sun rose above the horizon : SKYLINE.
she wanted to broaden her horizons : OUTLOOK, perspective, perception; range of experience, scope, ambit, orbit.
25A0; on the horizon IMMINENT, impending, close, near, approaching, coming, forthcoming, in prospect, at hand, on the way, about to happen, upon us, in the offing, in the pipeline, in the air, just around the corner; brewing, looming, threatening, menacing; informal on the cards.