definition of
acme

[1] #1 acme n. [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"; "...catap. wn

[2] #2 acme n. [vertex, peak, apex] the highest point (of something); "at the peak of the pyramid". wn