acme, height, elevation, peak, pinnacle, summit, superlative, meridian, tiptop, top -- (the highest level or degree attainable; the highest stage of development; "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")
peak, crown, crest, top, tip, summit -- (the top or extreme point of something (usually a mountain or hill); "the view from the peak was magnificent"; "they clambered to the tip of Monadnock"; "the region is a few molecules wide at the summit")
point, tip, peak -- (a V shape; "the cannibal's teeth were filed to sharp points")
vertex, peak, apex, acme -- (the highest point (of something); "at the peak of the pyramid")
bill, peak, eyeshade, visor, vizor -- (a brim that projects to the front to shade the eyes; "he pulled down the bill of his cap and trudged ahead")
Overview of verb peak
The verb peak has 1 sense
top out, peak -- (to reach the highest point; attain maximum intensity, activity; "That wild, speculative spirit peaked in 1929";"Bids for the painting topped out at $50 million")