peak

n. top, summit; pinnacle, apex

v. arrive to a climax, reach the highest point; become thin; raise vertically

adj. highest, prime, top

Peak may be:A mountainMore specifically, a pyramidal peak, a mountaintop that has been sculpted by erosion to form a pointThe highest, or sometimes the highest and lowest (see peak-to-peak), points on a varying waveformPeak electricity usage times (peak demand). See also The British English term for the part of a hat known as the visor in American EnglishPeak (mathematics), an (n-3)-dimensional element of a polytopeHubbert peak theory or peak oil, a theory that oil production worldwide is expected to reach a maximum level after which it will declinePEAKS SOFTWARE performs de novo peptide sequencing and protein identification on mass spectrometry data. BIAS Peak – a professional audio editing program on the Apple platformPeak Practice, a British television drama seriesThe highest corner of a four-sided, fore-aft sailA reference to peak experiencesA nicknamed used to refer to British class 44 diesel locomotives, and also classes 45 and 46, since Class 44s were named after British hills and mountains, but the name also stuck for the outwardly near identical Class 45s and 46s, even though these carried different names.Stephen Peak, Australian lawyer and radio personalityAn international scout and guide week-long camp, held in the grounds of Chatsworth, Derbyshire, UK every five years; the last two events were Peak 2000 & Peak 2005A place where students are sent to correct any rule infraction in school.Peak Records, a record labelPeak Studios is a recording studio based in Horley, United Kingdom
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Noun
1. the most extreme possible amount or value; "voltage peak"
(synonym) extremum
(hypernym) limit, limitation
(hyponym) minimum, lower limit
2. the period of greatest prosperity or productivity
(synonym) flower, prime, heyday, bloom, blossom, efflorescence, flush
(hypernym) time period, period of time, period
(hyponym) golden age
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"
(synonym) acme, height, elevation, pinnacle, summit, superlative, top
(hypernym) degree, level, stage, point
4. the top point of a mountain or hill; "the view from the peak was magnificent"; "they clambered to the summit of Monadnock"
(synonym) crown, crest, top, tip, summit
(hypernym) topographic point, place, spot
(hyponym) hilltop, brow
5. a V shape; "the cannibal's teeth were filed to sharp points"
(synonym) point, tip
(hypernym) convex shape, convexity
(hyponym) widow's peak
(part-holonym) cone, conoid, cone shape
6. the highest point (of something); "at the peak of the pyramid"
(synonym) vertex, apex, acme
(hypernym) extreme point, extreme, extremum
(hyponym) crown
7. a brim that projects to the front to shade the eyes; "he pulled down the bill of his cap and trudged ahead"
(synonym) bill, eyeshade, visor, vizor
(hypernym) brim
(part-holonym) baseball cap, jockey cap, golf cap
Verb
1. to reach the highest point; attain maximum intensity, activity; "That wild, speculative spirit peaked in 1929"
(hypernym) reach, make, attain, hit, arrive at, gain
(hyponym) crest
(entail) rise, lift, arise, move up, go up, come up, uprise
(derivation) acme, height, elevation, pinnacle, summit, superlative, top
Adjective
1. of a period of maximal use or demand or activity; "at peak hours the streets traffic is unbelievable"
(antonym) off-peak
(similar) high-season, peak-seaason
2. approaching or constituting a maximum; "maximal temperature"; "maximum speed"; "working at peak efficiency"
(synonym) highest, peak(a)
(similar) maximal, maximum

(v. t.)
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.
  

(v. i.)
To rise or extend into a peak or point; to form, or appear as, a peak.
  

(v. i.)
To pry; to peep slyly.
  

(v. i.)
To acquire sharpness of figure or features; hence, to look thin or sicky.
  

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

(n.)
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.
  

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

(n.)
The extremity of an anchor fluke; the bill.
  

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

The transition from the end of an economic expansion to the start of a contraction.