Peak

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

The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, esp. when isolated; as, the Peak of Teneriffe.

The upper aftermost corner of a fore-and-aft sail; -- used in many combinations; as, peak-halyards, peak-brails, etc.

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

The extremity of an anchor fluke; the bill.

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

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

To pry; to peep slyly.

To raise to a position perpendicular, or more nearly so; as, to peak oars, to hold them upright; to peak a gaff or yard, to set it nearer the perpendicular.

the most extreme possible amount or value; "voltage peak"

a brim that projects to the front to shade the eyes; "he pulled down the bill of his cap and trudged ahead"