Summits are high points or peaks, usually on a mountain range or hilltop. There are various synonyms for the word summit that can be used to describe these high points. Some of the synonyms are apex, peak, crest, pinnacle, top, acme, zenith, and climax.
Apex describes the highest point or climax of a mountain. Peak refers to the highest point of a mountain range or hill. Crest refers to the top edge of a mountain or hill. Pinnacle refers to the highest point of a rock formation or spire. Top refers to the highest point of a mountain or hill. Acme is the highest point or pinnacle of achievement. Zenith refers to the highest point or peak of a heavenly body. Lastly, climax refers to the highest or most intense point of an experience or event.