Example : Voltage peak.

Synonyms : extremum

Synonyms : bloom, blossom, efflorescence, flower, flush, heyday, prime

Example : 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.

Synonyms : acme, elevation, height, meridian, pinnacle, summit, superlative, tiptop, top

Example : The view from the peak was magnificent.
They clambered to the tip of Monadnock.
The region is a few molecules wide at the summit.

Synonyms : crest, crown, summit, tip, top

Example : The cannibal's teeth were filed to sharp points.

Synonyms : point, tip

Example : At the peak of the pyramid.

Synonyms : acme, apex, vertex

Example : He pulled down the bill of his cap and trudged ahead.

Synonyms : bill, eyeshade, visor, vizor

Example : That wild, speculative spirit peaked in 1929.
Bids for the painting topped out at $50 million.

Synonyms : top out