名词

1. 尖锥形石；尖岩
A pinnacle is a pointed piece of stone or rock that is high above the ground.

2. 顶峰；极点；顶点
If someone reaches the pinnacle of their career or the pinnacle of a particular area of life, they are at the highest point of it.

1. (architecture) a slender upright spire at the top of a buttress of tower

2. a lofty peak

3. the highest level or degree attainable
the highest stage of development

e.g. 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

Synonym: acmeheightelevationpeaksummitsuperlativemeridiantiptoptop