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.Nounvisor (horizontal part of a cap sticking out in front and shading the wearer's eyes)
6.NounThe upper aftermost corner of a fore-and-aft sail."peak-halyards; peak-brails"
7.NounThe narrow part of a vessel's bow, or the hold within it.
8.NounThe extremity of an anchor fluke; the bill.
9.NounA local maximum of a function, e.g. for sine waves, each point at which the value of y is at its maximum.
10.NounSomething of exceptional quality."There's so much peak on this website!"
11.VerbTo raise the point of (a gaff) closer to perpendicular.
12.VerbTo exceed the maximum signal amplitude of (a piece of equipment), resulting in clipping of the signal.
13.VerbTo reach a highest degree or maximum."Historians argue about when the Roman Empire began to peak and ultimately decay."
14.VerbTo reach a highest degree or maximum."Historians argue about when the Roman Empire began to peak and ultimately decay."
15.VerbTo rise or extend into a peak or point; to form, or appear as, a peak.
16.VerbTo reach the highest level of success or greatness in one's lifetime.
17.VerbTo reach the point of strongest effect from a drug.
18.VerbEllipsis of peak trans.
19.AdjectiveAt the greatest extent; maximum."peak oil, Peak TV"
20.AdjectiveMaximal, quintessential, archetypical, strictly with positive connotations; representing the culmination of its type."Knowing obscure 19th-century slang is peak nerd."
21.AdjectiveBad.
22.AdjectiveUnlucky; unfortunate."You didn't get a spot? That's peak."
23.AdjectiveVery good or high-quality."That movie last night was so peak."
24.VerbTo become sick or wan.
25.VerbTo acquire sharpness of figure or features; hence, to look thin or sickly.
26.VerbTo pry; to peep slyly.
27.NounAlternative form of peag (“wampum”).
28.VerbMisspelling of pique.