"pinnacle" in the noun sense
1. pinnacle
architecture) a slender upright spire at the top of a buttress of tower
2. 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"
3. pinnacle
a lofty peak
"pinnacle" in the verb sense
1. pinnacle
surmount with a pinnacle
"pinnacle a pediment"
2. pinnacle
raise on or as if on a pinnacle
"He did not want to be pinnacled"
Source: WordNet® (An amazing lexical database of English)
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