# zenith

/ˈzinəθ/ (US) · /zˈɛnɪθ/ (UK)

Source: https://englishreference.com/word/zenith
Updated: 2026-08-27

## Senses

### 1. highest point of success

noun · CEFR C1 · Academic

the time when something is most successful or powerful.

For teachers: the highest point or state; the culmination or peak of a career, era, or achievement.

- At the zenith of her career, she was the most famous singer in the world.
- The empire reached its political and cultural zenith during the twelfth century, before internal conflicts led to its gradual decline.

### 2. astronomy

noun · CEFR C2 · Technical

the point in the sky directly above you.

For teachers: the point on the celestial sphere vertically above a given observer; the highest point reached by a celestial body.

- The sun reaches its zenith at midday, when it is highest in the sky.
- The astronomer adjusted the telescope to observe the star as it passed through the zenith, ensuring the clearest possible view through the atmosphere.

Usage: In technical contexts, it is the polar opposite of the 'nadir'.

## Examples

- The sun reaches its zenith at noon.
- The Roman Empire reached its territorial zenith during the second century under the rule of Emperor Trajan.
- Critics argue that the composer reached his creative zenith with his fifth symphony, a work that remains unsurpassed in its emotional depth and structural complexity.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.