/ˈzɛnɪθ/
NOUN
The point on the celestial sphere that lies vertically above a particular observer or location, directly opposite the nadir.
The exact position in the sky directly above an observer, used as a reference point in astronomy and celestial navigation.
NOUN
The highest position in the sky attained by the sun, moon, or another celestial body during its apparent movement across the sky.
The point at which a celestial body reaches its greatest apparent altitude in the sky during its daily passage across the observer's sky.
NOUN
The greatest or most successful point in the development, performance, influence, or quality of something; the peak of its success or excellence.
The most successful or accomplished stage in a person's career, an organization's history, or an undertaking.
The period when a person, institution, movement, or civilization possesses its greatest authority, influence, reputation, or prominence.
The ultimate level of perfection, distinction, or excellence that can be achieved in a particular field, discipline, or form of work.