Definitions
1.nounA point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap.
2.nounThe highest value reached by some quantity in a time period."The stock market reached a peak in September 1929."
3.nounThe 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."
4.nounThe whole hill or mountain, especially when isolated.
5.nounThe upper aftermost corner of a fore-and-aft sail."peak-brails"
6.nounThe narrow part of a vessel's bow, or the hold within it.
7.nounThe extremity of an anchor fluke; the bill.
8.nounA local maximum of a function, e.g. for sine waves, each point at which the value of y is at its maximum.
9.verbTo reach a highest degree or maximum."Historians argue about when the Roman Empire began to peak and ultimately decay."
10.verbTo rise or extend into a peak or point; to form, or appear as, a peak.
11.verbTo raise the point of (a gaff) closer to perpendicular.
12.adjectiveMaximal, maximally quintessential or representative; constituting the culmination of
13.adjectiveBad
14.adjectiveUnlucky; unfortunate