Definitions
1.verbTo reach a highest degree or maximum."Historians argue about when the Roman Empire began to peak and ultimately decay."
2.verbTo rise or extend into a peak or point; to form, or appear as, a peak.
3.verbTo raise the point of (a gaff) closer to perpendicular.
4.verbTo become sick or wan.
5.verbTo acquire sharpness of figure or features; hence, to look thin or sickly.
6.verbTo pry; to peep slyly.
7.nounThe act of something reaching a peak.
8.adjectivePeaky; sickly; pining