peak

A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap.

The highest value reached by some quantity in a time period.

“The stock market reached a peak in September 1929.”

The top, or one of the tops, of a hill, mountain, or range, ending in a point.

“They reached the peak after 8 hours of climbing.”

The whole hill or mountain, especially when isolated.

The upper aftermost corner of a fore-and-aft sail.

“peak-brails”

The narrow part of a vessel's bow, or the hold within it.

The extremity of an anchor fluke; the bill.

A local maximum of a function, e.g. for sine waves, each point at which the value of y is at its maximum.

To reach a highest degree or maximum.

“Historians argue about when the Roman Empire began to peak and ultimately decay.”

To rise or extend into a peak or point; to form, or appear as, a peak.

To raise the point of (a gaff) closer to perpendicular.

Maximal, maximally quintessential or representative; constituting the culmination of

Bad

Unlucky; unfortunate

To become sick or wan.

To acquire sharpness of figure or features; hence, to look thin or sickly.

To pry; to peep slyly.

Wampum.