What is the meaning of summit?

noun

• The highest level or degree attainable; the highest stage of development.
  • usage: "his landscapes were deemed the acme of beauty"; "the artist's gifts are at their acme"; "at the height of her career"; "the peak of perfection"; "summer was at its peak"; "... Catapulted Einstein to the pinnacle of fame"; "the summit of his ambition"; "so many highest superlatives achieved by man"; "at the top of his profession"
  • synonyms: acme, height, elevation, peak, pinnacle, superlative, meridian, tiptop, top
• The top or extreme point of something (usually a mountain or hill. )
  • usage: "the view from the peak was magnificent"; "they clambered to the tip of Monadnock"; "the region is a few molecules wide at the summit"
  • synonyms: peak, crown, crest, top, tip
• A meeting of heads of governments.
  • synonyms: summit meeting

verb

• Reach the summit (of a mountain. )
  • usage: "They breasted the mountain"; "Many mountaineers go up Mt. Everest but not all summit"
  • synonyms: breast