noun
pinnacle
PIH-nuh-kuhl
noun
1
The highest point of achievement or success.
"Winning the championship was the pinnacle of her career."
"The company reached the pinnacle of its industry."
2
A tall, pointed peak of rock or a similar sharp architectural spire.
"Climbers admired the jagged pinnacle rising above the ridge."
How to Use Pinnacle
Learner’s notesIn plain EnglishThe very top or highest point — of a mountain, a building, or someone's career.
Common pairings
pinnacle of success
reach the pinnacle
the pinnacle of one's career
Word Forms
pinnacled past tense, pinnacles plural, pinnacles singular
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Winning the championship was the _____ of her career.
Etymology
From Latin pinna, "a point or peak," the same root that gives English "pin."