American Dictionary

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Definition pinnacle in American English

pinnacle noun

[countable] noun
/ˈpɪnək(ə)l/
1

the most successful or exciting part of someone's life

Example

This movie marked the pinnacle of her acting career.

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2

the top of a very high mountain

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3

a tall thin pointed piece of stone or rock

Synonyms and related words
Definition pinnacle in American English