pinnacle Meaning and Definition
1. n. (architecture) a slender upright spire at the top of a buttress of tower
2. n. a lofty peak
3. n. the highest level or degree attainable; the highest stage of development
4. v. raise on or as if on a pinnacle
5. v. surmount with a pinnacle
A pinnacle is an architectural ornament originally forming the cap or crown of a buttress or small turret, but afterwards used on parapets at the corners of towers and in many other situations.
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