zenith

باللغة العربية: سَمْت، ذُرْوَة

1. The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir.
2. The highest point in the sky reached by a celestial body.
3. Highest point or state; peak. · Winning the continental championship was the zenith of my career.

الجمع zeniths