peak

peak (http://definr.com/peak)

     adj 1: of a period of maximal use or demand or activity; "at peak
            hours the streets traffic is unbelievable" [ant: off-peak]
     2: approaching or constituting a maximum; "maximal
        temperature"; "maximum speed"; "working at peak
        efficiency" [syn: highest, peak(a)]
     3: consisting of or causing a climax; "a peak experience" [syn:
         climactic, climactical, peak(a)]
     n 1: the most extreme possible amount or value; "voltage peak"
          [syn: extremum]
     2: the period of greatest prosperity or productivity [syn: flower,
         prime, heyday, bloom, blossom, efflorescence, flush]
     3: the highest level or degree attainable: "his landscapes were
        deemed the acme of beauty"; "the artist's gifts are at
        their acme"; "at the height of her career"; "the peak of
        perfection"; "summer was at its peak"; "...catapulted
        Einstein to the pinnacle of fame"; "the summit of his
        ambition"; "so many highest superlatives achieved by man";
        "at the top of his profession" [syn: acme, height, elevation,
         pinnacle, summit, superlative, top]
     4: the uppermost part of a shape; "at the peak of the pyramid"
        [syn: crown, summit]
     5: the top point of a mountain or hill; "the view from the peak
        was magnificent"; "they clambered to the summit of
        Monadnock" [syn: crown, crest, top, tip, summit]
     6: a V shape; "the cannibal's teeth were filed to sharp points"
        [syn: point, tip]
     7: the highest point of something [syn: vertex, apex, acme]
     8: a brim that projects to the front to shade the eyes; "he
        pulled down the bill of his cap and trudged ahead" [syn: bill,
         eyeshade, visor, vizor]
     v : to reach the highest point; attain maximum intensity,
         activity: "That wild, speculative spirit peaked in 1929."
         [syn: reach a peak]