The phrase "a pinnacle in" is correct and usable in written English.
It can be used to describe a peak or high point in a particular field, achievement, or experience.
Example: "Winning the Nobel Prize was a pinnacle in her career as a scientist."
Alternatives: "a peak in" or "a high point in".
It feels like a cultural event, a pinnacle in the history of tech, a moment.
Specialization of the teeth and jaws reached a pinnacle in the hadrosaurs, or duck-billed ornithopods.
Someone who's reached a pinnacle in everything; the professional, personal and athletic world and really leaving my mark.
Carillon art reached a pinnacle in the latter half of the 17th century with the founders François and Pierre Hémony of the Netherlands.
Some people have compared this to a kind of cultural renaissance equaling the Tang dynasty, a pinnacle in China's artistic achievement.
She had matured as an artist, and at the very point when she should have been reaching a pinnacle in terms of success, her audience began to dwindle.
In another case, Erica Martinez, who lives in a Pinnacle building in Washington Heights, received a $1,317.83 rent credit from Pinnacle after the State Department of Housing and Community Renewal ruled that she had been overcharged.
"We've been living here since it was the drug capital of the world, now we are sitting on a commodity,'' said Rafael Gomez, 48, who lives in a Pinnacle building in Washington Heights, adding that people ask how "do we end up in such a beautiful neighborhood when we are poor people?" Mr. Weiner denied criminal wrongdoing and said his goal was to be recognized as a model landlord.
Marjorie Charron, 56, and her husband, Ted Charron, 59, moved into a Pinnacle building in Harlem in 2001, paying $1,900 a month for a two-bedroom apartment.
"I am personally gratified to see that Roger has reached a new pinnacle in a remarkable career, because Roger has played an important role in my own career," Mr. Giuliani said, according to a draft of his speech.
For the rapt public it wasn't about the product anymore; it was about reaching a surreal pinnacle in a battle for soda supremacy that's now been raging for more than 120 years.
