peak

Sense 1 noun

the most extreme possible amount or value

voltage peak

Sense 2 verb

to reach the highest point; attain maximum intensity, activity

That wild, speculative spirit peaked in 1929

Sense 3 noun

the period of greatest prosperity or productivity

Sense 4 noun

the highest level or degree attainable; the highest stage of development

his landscapes were deemed the acme of beauty

Sense 5 noun

the top or extreme point of something (usually a mountain or hill)

the view from the peak was magnificent

Sense 6 noun

a V shape

the cannibal's teeth were filed to sharp points

Sense 7 noun

the highest point (of something)

at the peak of the pyramid

Sense 8 noun

a brim that projects to the front to shade the eyes

he pulled down the bill of his cap and trudged ahead